Exposure Limits and Safety Considerations for Theatrical Fog and Haze in Live Entertainment
Executive summary
The most common theatrical fog and haze effects are created by aerosolizing (1) water-based mixtures of glycols and/or glycerin and (2) highly refined mineral oil. In occupational health terms, the primary exposure of concern is inhalation of fine liquid droplets (aerosols) rather than vapor. [1]
Across the best-available field and epidemiologic research (notably U.S. Broadway investigations and a multi-venue Canadian study), measured time-weighted average (TWA) aerosol concentrations in professional entertainment settings are typically low—often in the sub‑mg/m³ to low‑mg/m³ range—but respiratory and mucous membrane symptoms have still been associated with exposure, especially where short-term peaks or close proximity to sources occur. [2]
A practical and evidence-aligned approach for entertainment employers is to treat theatrical fog/haze as an indoor air quality (IAQ) aerosol control problem (source strength + particle size + ventilation + time in plume), and to manage it to industry-specific limits and monitoring protocols that are explicitly designed for these mixtures and use cases. [3]
Recommended operational exposure thresholds (most defensible in the entertainment context)
- For water-based glycol/glycerin fogs intended to meet the entertainment-industry standard:
Use the limits in ANSI[4] / Entertainment Services and Technology Association[5] ANSI E1.5 (Theatrical fog made with aqueous solutions of di- and trihydric alcohols): - ≤ 10 mg/m³ (8‑hr TWA) for the total alcohol aerosol concentration (sum of listed glycols/glycerin).
- ≤ 40 mg/m³ “peak” for the total alcohol aerosol concentration (when one or more listed glycols and/or glycerin are used).
- ≤ 50 mg/m³ “peak” when the fog is glycerin-only (trihydric alcohol alone). [6]
ANSI E1.5 also requires that thermal degradation products (e.g., formaldehyde, acrolein, acetaldehyde) and contaminants be present only below the lowest applicable permissible levels. [7]
Importantly, ANSI E1.5 explicitly limits its scope to otherwise healthy people of “normal working age” (18–64) and states that no limits for other populations should be inferred. [8] - For mineral oil haze/fog (highly refined):
Use a dual benchmark: - The general occupational limits for mineral oil mist (where applicable): 5 mg/m³ TWA (OSHA PEL; ACGIH TLV for pure/highly/severely refined mineral oil) and NIOSH REL 5 mg/m³ TWA with 10 mg/m³ STEL. [9]
- The entertainment-specific recommendation from the large Broadway evaluation (commissioned by Equity/League): 25 mg/m³ ceiling/peak for mineral oil mist and ≤ 5 mg/m³ TWA. [10]
Bottom-line risk conclusions
Evidence supports that health endpoints in entertainment environments are dominated by irritation-type effects (eyes, nose, throat, upper airway; cough/dry throat; sometimes chest tightness/wheeze) rather than systemic toxicity, and that reducing peak exposure intensity and time-in-plume is the most actionable way to reduce risk. [11]
Theatrical fog and haze chemistry
The principal constituents of “traditional” stage fog/haze fluids fall into three overlapping categories:
Water-based glycol and glycerin fluids (dominant category in theatre and touring)
The ANSI E1.5 standard lists the alcohols that may be used with deionized water in a fog/mist intended to meet that standard: triethylene glycol, monopropylene glycol (propylene glycol; 1,2-propanediol), diethylene glycol, dipropylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, and glycerin (glycerol; 1,2,3-propanetriol). [12]
A manufacturer SDS may not fully disclose composition (often due to mixture classification/trade secret practices), but several SDS explicitly identify these constituents as “one or more of” the above glycols and water. [13]
Mineral oil haze / “oil hazers” (common for long-hang haze and beam enhancement)
Oil-based atmospheric effects use food/pharmaceutical-grade (highly refined) mineral oil, dispersed mechanically (often described as “cracking” via compressed air) rather than boiling water solutions. The Broadway health-effects evaluation describes oil mist generation by dispersing a USDA-approved food/pharmaceutical grade mineral oil and notes a very fine particle size distribution for oil haze (reported in the ~0.1–1.0 µm aerodynamic diameter range in that evaluation). [14]
Industry SDS for “oil-based haze fluid” commonly list mineral oil (CAS 8042‑47‑5 / 8012‑95‑1 class) as the key ingredient. [15]
The refining level matters: ACGIH distinguishes pure/highly/severely refined mineral oil (TLV applies) from poorly/mildly refined mineral oil (no TLV; carcinogenicity concern category). [16]
Additives and variability across products ANSI E1.5 notes that fogs produced with chemicals not on its list (including coloring agents, scents, and bactericides) are not necessarily a health risk, but do not meet the requirements of the standard. [17]
Real-world products also vary: one haze fluid SDS (for example) lists diethylene glycol (CAS 111‑46‑6) as a constituent (5–≤45%), illustrating that some products may incorporate glycols with greater concern for ingestion toxicity and that ingredient verification via SDS is critical. [18]
Potential decomposition products and contaminants If glycols or glycerin are overheated, low-level aldehyde decomposition products (e.g., formaldehyde) are theoretically possible. ANSI E1.5 requires decomposition products (including formaldehyde, acrolein, acetaldehyde) to remain below the lowest permissible level set by the relevant authority. [19]
In field measurements in Broadway theatres, NIOSH found acrolein not detected and formaldehyde at low workplace-background-typical levels, supporting that properly operating machines generally do not create major aldehyde hazards in those settings. [20]
ANSI E1.5 also explicitly addresses contaminants (example: acetone, ethylene glycol) that may appear in bulk stock and requires they remain below applicable limits. [8]
Exposure limits and standards landscape
How OSHA, NIOSH, and ACGIH differ in practice
The U.S. Occupational Safety and Health Administration[21] permissible exposure limits (PELs) are generally legally enforceable standards (with important caveats and sector-specific applicability). [22]
The National Institute for Occupational Safety and Health[23] recommended exposure limits (RELs) are recommendations intended to better protect worker health and are often more current, including short-term limits when evidence supports. [24]
The American Conference of Governmental Industrial Hygienists[25] TLVs are guidance values used widely in industrial hygiene; for mineral oils, ACGIH explicitly differentiates refined classes in its listing. [26]
Table comparing OSHA PELs, NIOSH RELs, and ACGIH TLVs for common theatrical fog/haze constituents
| Substance / aerosol type | OSHA PEL | NIOSH REL | ACGIH TLV |
| Mineral oil mist (pure/highly refined; inhalable/particulate) | 5 mg/m³ TWA [27] | 5 mg/m³ TWA; 10 mg/m³ STEL [28] | 5 mg/m³ TWA (inhalable particulate) for pure/highly refined; none for poorly/mildly refined [16] |
| Glycerin (mist) | 15 mg/m³ TWA (total dust); 5 mg/m³ TWA (respirable fraction) [29] | Commonly presented alongside nuisance/PNOR-style guidance in OSHA’s annotated table context (and historically handled as low-toxicity particulate); confirm program-specific applicability [30] | TLV values for specific glycerin mist may not be publicly viewable; ACGIH provides general PNOS particulate guidance (see below) [31] |
| Particles not otherwise specified / regulated (PNOS/PNOR guidance often relevant when specific limits are absent) | PNOR: 15 mg/m³ (total), 5 mg/m³ (respirable) in OSHA’s framework [29] | NIOSH notes “no established RELs” for some substances in this category and documents concerns with older proposed PELs [32] | ACGIH PNOS guidance commonly cited as 10 mg/m³ (inhalable) and 3 mg/m³ (respirable) until a substance-specific TLV is set [33] |
| Formaldehyde (possible thermal degradation product) | 0.75 ppm TWA; 2 ppm STEL [34] | 0.016 ppm TWA; 0.1 ppm ceiling (15-min) [35] | OSHA’s public summaries list ACGIH values (e.g., 0.1 ppm TWA; 0.3 ppm STEL in 2016 listing) [36] |
| Acrolein (possible thermal degradation product) | 0.1 ppm TWA [37] | 0.1 ppm TWA; 0.3 ppm STEL [37] | OSHA’s public summaries list TLV-C 0.1 ppm [38] |
| Acetaldehyde (possible thermal degradation product) | 200 ppm TWA [39] | NIOSH pocket guide entries emphasize carcinogenicity concern; REL treatment differs by source and context [40] | OSHA’s public summaries list TLV-C 25 ppm [41] |
Because entertainment fog fluids are mixtures and because many fog-fluid glycols lack substance-specific OSHA/NIOSH/ACGIH limits, entertainment practice frequently uses industry-specific limits (ANSI E1.5 and union/industry guidance) rather than attempting to map each glycol component to a general-industry OEL. [42]
Entertainment-industry limits and guidance adopted in practice
ANSI E1.5 provides explicit concentration criteria for theatrical fogs made from the listed glycols/glycerin with deionized water: 10 mg/m³ 8‑hr TWA and 40 mg/m³ peak (or 50 mg/m³ peak for glycerin-only). [6]
A widely used industry monitoring protocol document (hosted by ESTA’s fog/smoke working group) presents the same “widely recognized” U.S. guidelines and includes mineral oil limits used in theatre practice: mineral oil 25 mg/m³ peak and 5 mg/m³ 8‑hr TWA. [43]
The large Broadway health-effects evaluation commissioned for Equity/League recommended 40 mg/m³ peak for glycols and 25 mg/m³ peak for mineral oil, and keeping mineral oil TWA below 5 mg/m³. [44]
In short: for theatre fog/haze, the most operationally relevant limits are the ANSI E1.5 TWA/peak limits (glycol/glycerin) and the mineral-oil mist TWA limit of 5 mg/m³ plus industry peak guidance (25 mg/m³), implemented through calibrated aerosol monitoring. [45]
Peer-reviewed and technical research on theatrical fog exposure
Field exposure measurements in entertainment venues
Broadway theatre investigations (NIOSH HHE, early 1990s)
A NIOSH health hazard evaluation measured multiple glycols and mineral oil mist in Broadway productions and reported (general area / performance-related sampling):
- Propylene glycol: <0.01 to 1.9 mg/m³
- Triethylene glycol: <0.04 to 3.7 mg/m³ (detected in one production)
- 1,3-butylene glycol: 0.16 to 2.1 mg/m³ (detected in one production)
- Ethylene glycol: ND to 0.4 mg/m³ (detected in two productions)
- Mineral oil mist: <0.13 mg/m³ (in a production using oil-based fog)
- Formaldehyde: <0.002 to 0.04 ppm (typical of non-industrial workplaces)
- Acrolein: not detected (MDC reported) [46]
NIOSH concluded that measured chemical concentrations were well below the major occupational limits available for mineral oil mist and certain aldehydes, but still observed increased prevalence of irritant/respiratory symptoms in performers in fog-using productions, suggesting a role for peak exposures and/or susceptibility. [47]
Multi-venue entertainment worker study (British Columbia; early 2000s)
A comprehensive research program led by University of British Columbia[48] investigators assessed exposures and health endpoints across film/TV, live theatre, concerts, and other venues, using personal inhalable aerosol sampling and symptom/lung-function measures. In the thesis dataset underlying the published work, personal inhalable aerosol concentrations on the sampling day were:
- Overall mean 0.73 mg/m³ (range 0.02–4.11 mg/m³)
- TV/film mean 1.04 mg/m³ (range 0.06–4.11 mg/m³)
- Theatre mean 0.44 mg/m³ (range 0.02–3.22 mg/m³) [49]
This dataset aligns with the published abstract describing mean personal inhalable aerosol around 0.70 mg/m³ with a similar range, and it also reported that a substantial fraction of aerosol mass can be in smaller size ranges relevant to thoracic/respirable deposition. [50]
Aerosol size and deposition relevance
In the entertainment worker study summarized above, the review report notes that ~75% of particles were in the thoracic size range (<10 µm) and ~61% in the respirable range (<3.5 µm), underscoring that worker exposures are not just “visible mist,” but can include particle sizes capable of reaching deeper lung regions. [51]
For oil haze specifically, the Broadway evaluation described oil haze particle sizes in the submicron range (~0.1–1.0 µm) based on particle counting in a test setting. [52]
Health effects evidence in performers and entertainment workers
Epidemiologic associations (peer-reviewed, 2005)
A peer-reviewed study of 101 entertainment industry employees at 19 sites reported:
- Chronic work-related wheezing and chest tightness significantly associated with increased cumulative fog exposure (mineral oil and glycols) over the prior two years.
- Acute cough and dry throat associated with acute exposure to glycol-based fogs.
- Upper airway symptoms associated with increased fog aerosol overall.
- Lower lung function among those working closest to the fog source. [53]
These findings support that (1) symptoms can occur even when average mass concentrations are relatively low, and (2) proximity, cumulative time, and possibly peak intensity are key determinants. [54]
Broadway performer health-effects evaluation (large technical study, 1997–1999)
The Broadway health-effects evaluation (Mount Sinai/ENVIRON) reported no evidence of serious acute changes in voice quality, pulmonary function, or vocal cord appearance across its clinical testing subset, but it did observe increased symptom reporting with higher exposures and recommended peak limits to prevent irritant effects. It recommended that exposures for actors not exceed 40 mg/m³ peak glycols and 25 mg/m³ peak mineral oil, and that mineral oil TWA be kept below 5 mg/m³. [55]
Controlled short-term exposure to propylene glycol mist (non-theatre but highly relevant)
A controlled study by Gunilla Wieslander[56] and colleagues exposed 27 non-asthmatic volunteers to propylene glycol mist for 1 minute during aviation emergency training conditions at a geometric mean concentration of 309 mg/m³ (range 176–851 mg/m³). The study found acute decreases in tear film stability and increases in ocular/throat symptoms; a subset developed cough and slight airway obstruction indicators. [57]
Although these concentrations are far above typical theatre TWAs, the study is important because it demonstrates that very short, high-intensity PG aerosol exposures can produce acute irritation and mild airway effects—consistent with the theatre hypothesis that peaks matter. [58]
Typical concentration ranges measured in theatre and entertainment settings
The combined literature suggests the following typical measured ranges (interpreting “typical” as field measurements in professional settings rather than worst-case training scenarios):
- Glycol aerosols in Broadway theatre general area samples: up to a few mg/m³ (e.g., TEG up to 3.7 mg/m³; PG up to 1.9 mg/m³). [46]
- Mineral oil mist in Broadway productions: typically below 1–2 mg/m³ TWA over a performance; one measured dataset ranged ND to 1.35 mg/m³ over ~2.5 hours. [59]
- Personal inhalable aerosol (mixed fog/haze contexts) in film/TV, theatre, concerts: mean roughly ~0.7 mg/m³ with ranges up to ~4 mg/m³ in that dataset; exposures higher in oil-based vs glycol-based conditions in some analyses. [60]
A key practical implication is that workplace concentrations may remain well under 10 mg/m³ as an 8‑hr TWA while localized near-source and short-duration peaks can still drive symptoms and should be controlled. [61]
Documented health effects and risk considerations
Short-term effects documented or strongly supported
Across Broadway and multi-venue studies, the most consistent short-term outcomes are:
- Upper airway and mucous membrane irritation: sore/dry throat, hoarseness, eye irritation/dryness, nasal symptoms. [62]
- Cough and dry throat associated particularly with glycol-based fog exposure. [63]
- Small acute changes in lung function in certain subgroups (e.g., those closest to sources; or symptom-developers during controlled short-term PG exposure). [63]
Mechanistically, one plausible pathway is that glycols (polyols) can contribute to drying/irritation of mucous membranes at sufficient aerosol exposures, consistent with toxicology summaries and irritation effects described in the entertainment IAQ review literature. [64]
Longer-term effects and uncertainties
Longer-term outcomes are harder to evaluate due to confounding, selection effects, changing technology, and variable exposure histories, but the peer-reviewed entertainment worker study reported associations of cumulative exposure with chronic work-related wheeze and chest tightness, and lower lung function among those closest to sources. [53]
The Broadway evaluation also discusses the occupational health challenge of potential “healthy worker” effects (workers who remain may be less sensitive), and it integrates non-exposure factors such as stress and role demands into symptom interpretation. [44]
Mineral oil–specific considerations
For highly refined mineral oil, the primary occupational concern is respiratory irritation at higher mist levels and the broader literature concern that inhaled mineral oil can persist in the lung. ACGIH’s listing distinguishes highly refined mineral oils from poorly refined oils (with different toxicological concern profiles). [65]
A theatre-focused safety discussion also highlights that mineral oil aspiration/inhalation is associated with exogenous lipoid pneumonia in medical contexts, reinforcing the importance of minimizing inhalation exposure and avoiding poorly controlled oil haze bursts (while recognizing that theatre-specific lipoid pneumonia cases are not a core evidence base in the theatre literature). [66]
Sensitive groups and scope limits
ANSI E1.5 explicitly limits its scope to healthy people aged 18–64 and cautions against inferring safe limits for other populations such as children or medically vulnerable individuals. [8]
In K–12 settings, a public health guidance document (Washington State) discourages optional use, recommends discontinuing immediately if discomfort occurs, and specifically advises avoiding fogging products containing higher-concern glycols such as diethylene glycol and ethylene glycol. [67]
This aligns with the broader practice recommendation: the more medically vulnerable the population (children, asthma, vocal professionals under heavy demand), the more conservative operational controls should be, even when adult-worker limits are met. [68]
Practical safety recommendations for theatrical environments
Product selection and substitution
Verify ingredients through SDS and choose fluids that align with the intended risk framework. ANSI E1.5 provides a clear list of acceptable glycols/glycerin for “standard-compliant” water-based effects, and it explicitly notes that products with other additives do not meet the standard’s requirements. [69]
Where possible—especially in schools or venues with sensitive participants—avoid products that contain diethylene glycol or ambiguous/undisclosed ingredients. [18]
For mineral oil effects, specify pure/highly refined mineral oil consistent with the ACGIH refined-category guidance and avoid poorly/mildly refined oils. [16]
Engineering controls
Ventilation and plume control are central because these are indoor aerosol sources with potentially high short-term spatial gradients (near-source “jets” and poorly mixed regions). Field studies show exposures increase with more machines and more time in visible fog and decrease with greater distance and other environmental factors. [50]
Practical engineering measures include increasing outdoor air where feasible, using stage/house air movement to avoid stagnant zones, and designing effects to minimize performer time in concentrated plumes. [70]
Administrative controls and staging choices
Because symptoms appear linked to short-term peaks and proximity, administrative controls should focus on cue design, blocking, and time in plume. The Broadway evaluation and related protocols emphasize keeping exposures below peak guidance levels to prevent irritant effects. [10]
In practical terms, this means: avoid placing performers directly in the discharge path, allow clearing time between heavy bursts and entrances, and re-check exposures when scene timing, machine settings, or ventilation changes. [71]
Measurement, monitoring, and documentation
Entertainment fog/haze monitoring is complicated because common direct-reading aerosol monitors infer “mg/m³” from light scattering and must be calibrated (or corrected) for the specific fluid/machine aerosol properties. A 2024 calibration document prepared for Equity/Broadway notes that a dust-calibrated monitor requires multiplying by an appropriate calibration factor for the specific fog aerosol, and it provides approved factors for certain machine-fluid combinations. [72]
A 2018 study for International Alliance of Theatrical Stage Employees[73] evaluated correction factors for real-time instruments against NIOSH reference methods and found correction factors varied substantially by fog fluid composition (with wide ranges for glycol-based fluids). [74]
The ESTA monitoring protocol provides both “simple” and logging-based protocols to verify that recognized peak and TWA limits are not exceeded and to support communication with performers/crew/audience. [43]
A defensible program for professional venues typically includes: – Pre-production or early rehearsal monitoring with calibrated real-time aerosol logging to identify peaks and hotspots. [75]
– Documentation (logs, settings, cue conditions, ventilation status) to support repeatability and stakeholder communication. [75]
– Periodic confirmation sampling using vetted analytical methods when needed (e.g., NIOSH Method 5523 for glycols; gravimetric methods for particulates), particularly if there is a dispute, a sensitive population, or unusual effects. [76]
Worker protection and medical management
Respirators are generally not a primary control in performing arts, both for feasibility and because the hazard is best controlled at the source and via ventilation. However, for crew members very near sources (e.g., technicians adjusting machines in dense plumes), an employer may consider task-based respiratory protection as part of a formal respiratory protection program—recognizing that this can introduce communication and operational constraints. [77]
Given reported symptom associations (cough, wheeze, chest tightness), employers should have a process for identifying and supporting symptomatic individuals, including adjustments to effect intensity, time in plume, and medical referral as appropriate. [78]
Secondary hazards that often matter operationally
SDS and industry protocols also emphasize non-inhalation hazards such as slip hazards from spilled fluid or condensate and general handling precautions. [79]
Although not the focus of this report, the modern risk program should integrate fog/haze with stage housekeeping, visibility management, and any impacts on detection systems and egress.
Key gaps, disagreements, and research needs
A consistent theme across authoritative reviews is that theatrical fog/haze sits in a regulatory grey space: it is widespread, but the exact aerosol mixtures are variable and do not map neatly onto traditional industry OELs for single substances. [80]
Key gaps and points of disagreement include:
Lack of widely adopted substance-specific OELs for many fog-fluid glycols
Major OEL frameworks provide strong, clear limits for mineral oil mist and certain aldehydes, but many commonly used glycols in fog fluids lack directly applicable OSHA/NIOSH/ACGIH limits, pushing entertainment practice toward ANSI E1.5 and union/industry guidance. [81]
Symptoms at concentrations below traditional limits
Broadway and entertainment worker studies report symptom associations even when measured concentrations are below many existing occupational limits, reinforcing that for performers, “irritation endpoints” and peak intensity can matter more than a shift-average compliance framing alone. [82]
Measurement challenges and comparability across studies
Real-time aerosol instruments require correction factors that vary by fluid composition and machine; without correct calibration, mg/m³ numbers may not be comparable across productions or devices. [83]
This contributes to disagreement about “what levels are actually present” and about the degree to which low-cost PM sensors can serve as exposure indicators (a topic that has begun to appear in recent grey literature, but remains methodologically limited without aerosol-specific calibration). [84]
Limited evidence for vulnerable populations and modern venue patterns
ANSI E1.5 explicitly does not generalize to children or other vulnerable groups. Meanwhile, many contemporary venues (theme parks, immersive installations) may have different ventilation patterns and repeated guest/worker exposure profiles than the Broadway-centric and early-2000s datasets. [85]
Need for updated epidemiology and exposure-response functions tied to peak metrics
Multiple investigations hypothesize that “peaks” drive symptoms, but peak averaging times and exposure-response relationships for modern equipment (including different droplet size distributions and output profiles) require further study. [86]
References
Actors’ Equity Association. (2024). Theatrical Smoke, Fog and Haze Testing: Calibration Factors (Updated April 2024). https://actorsequity.org/docs/librariesprovider2/resource-documents/safe-sanitary/calibration-factors-revised-2024-04-15.pdf
Ballantyne, B., et al. (2006). Respiratory peripheral chemosensory irritation, acute and repeated exposure toxicity studies with aerosols of triethylene glycol. Human & Experimental Toxicology. (PubMed abstract) https://pubmed.ncbi.nlm.nih.gov/16909429/
Colden, A., & Phylmar Group / Magari, S. R., et al. (2017). Theatrical Fog Exposure Assessment: Methods and Exposure Limits (Final report for CSATF; Dec 15, 2017). https://tsp.esta.org/tsp/working_groups/FS/docs/Colden-Phylmar_Theatrical%20Fog%20Review%20Final%20Report_for_CSATF.pdf
Entertainment Services and Technology Association (ESTA). (2009; reaffirmed 2018). ANSI E1.5 – Theatrical Fog Made With Aqueous Solutions of Di- and Trihydric Alcohols. https://tsp.esta.org/tsp/documents/docs/E1-5_2009.pdf
(Also available as reaffirmation PDF: https://www.theatrefx.com/media/LOOK/ESTA_E1-5_2009_R2018.pdf)
Entertainment Services and Technology Association (ESTA), Fog & Smoke Working Group. (n.d.). Monitoring Glycol, Glycerin, and Mineral Oil (How-to protocol). https://tsp.esta.org/tsp/working_groups/FS/docs/How_to_Monitor_Glycol_Glycerin_Mineral-Oil.pdf
International Alliance of Theatrical Stage Employees (IATSE) / Aura Health and Safety Corporation. (2018). Calibration Factors for Haze and Fog in the Film Industry (IA170101). https://www.iatse.com/_content/documents/public/IA170101%20Fog%20Final%20Rev%201%20April%209%202018.pdf
Moline, J. M., Golden, A. L., Highland, J. H., Wilmarth, K. R., & Kao, A. S. (2000). Health Effects Evaluation of Theatrical Smoke, Haze, and Pyrotechnics (final report; Broadway productions 1997–1999). https://misakyan.com/files/Health-Effects-Evaluation-of-Theatrical-Smoke-Haze-and-Pyrotechnics.pdf
NIOSH. (1994). HHE Report No. HETA-90-0355-2449, Actors’ Equity Association/The League of American Theatres and Producers, Inc., New York, New York. https://www.cdc.gov/niosh/hhe/reports/pdfs/1990-0355-2449.pdf
NIOSH. (n.d.). NIOSH Pocket Guide to Chemical Hazards: Oil mist (mineral). https://www.cdc.gov/niosh/npg/npgd0472.html
NIOSH. (n.d.). NIOSH Pocket Guide to Chemical Hazards: Formaldehyde / Formalin (as formaldehyde). https://www.cdc.gov/niosh/npg/npgd0293.html
https://www.cdc.gov/niosh/npg/npgd0294.html
NIOSH. (n.d.). NIOSH Pocket Guide to Chemical Hazards: Acrolein. https://www.cdc.gov/niosh/npg/npgd0011.html
Occupational Safety and Health Administration (OSHA). (n.d.). 29 CFR 1910.1048 – Formaldehyde. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1048
Occupational Safety and Health Administration (OSHA). (n.d.). Permissible Exposure Limits – OSHA Annotated Table Z-1. https://www.osha.gov/annotated-pels/table-z-1
OSHA. (2021). Occupational Chemical Database: Oil Mists, Mineral. https://www.osha.gov/chemicaldata/704
ACGIH. (n.d.). Mineral Oil, Excluding Metal Working Fluids. https://www.acgih.org/mineral-oil-excluding-metal-working-fluids/
Teschke, K., et al. (2005). Exposures to atmospheric effects in the entertainment industry. Journal of Occupational and Environmental Hygiene. (PubMed record; full text may be paywalled) https://pubmed.ncbi.nlm.nih.gov/15884183/ https://doi.org/10.1080/15459620590952215
Varughese, S. (2002). Respiratory health impacts in the entertainment industry from exposure to theatrical smokes and fogs (MSc thesis, University of British Columbia). https://www.researchgate.net/publication/279481832_Respiratory_health_impacts_in_the_entertainment_industry_from_exposure_to_theatrical_smokes_and_fogs/links/5f6cb23aa6fdcc008638a55a/Respiratory-health-impacts-in-the-entertainment-industry-from-exposure-to-theatrical-smokes-and-fogs.pdf
Varughese, S., Teschke, K., Brauer, M., Chow, Y., van Netten, C., & Kennedy, S. M. (2005). Effects of theatrical smokes and fogs on respiratory health in the entertainment industry. American Journal of Industrial Medicine, 47(5), 411–418. https://pubmed.ncbi.nlm.nih.gov/15828073/ https://doi.org/10.1002/ajim.20151
Wieslander, G., Norbäck, D., & Lindgren, T. (2001). Experimental exposure to propylene glycol mist in aviation emergency training: Acute ocular and respiratory effects. Occupational and Environmental Medicine, 58(10), 649–655. https://pmc.ncbi.nlm.nih.gov/articles/PMC1740047/ https://doi.org/10.1136/oem.58.10.649
Washington State Department of Health. (2023). Guidelines for Use of Theatrical Fog (K–12). https://doh.wa.gov/sites/default/files/2023-05/333-312.pdf
[1] [3] [5] [6] [7] [8] [12] [17] [19] [23] [42] [45] [68] [69] [81] [85] [86] Entertainment Services and Technology Association
https://tsp.esta.org/tsp/documents/docs/E1-5_2009.pdf
[2] [20] [21] [46] [47] [59] [62] [82] https://www.cdc.gov/niosh/hhe/reports/pdfs/1990-0355-2449.pdf
https://www.cdc.gov/niosh/hhe/reports/pdfs/1990-0355-2449.pdf
[4] [43] [75] https://tsp.esta.org/tsp/working_groups/FS/docs/How_to_Monitor_Glycol_Glycerin_Mineral-Oil.pdf
https://tsp.esta.org/tsp/working_groups/FS/docs/How_to_Monitor_Glycol_Glycerin_Mineral-Oil.pdf
[9] [24] [27] [28] [77] NIOSH Pocket Guide to Chemical Hazards – Oil mist (mineral)
https://www.cdc.gov/niosh/npg/npgd0472.html?utm_source=chatgpt.com
[10] [14] [25] [44] [52] [55] [70] https://misakyan.com/files/Health-Effects-Evaluation-of-Theatrical-Smoke-Haze-and-Pyrotechnics.pdf
https://misakyan.com/files/Health-Effects-Evaluation-of-Theatrical-Smoke-Haze-and-Pyrotechnics.pdf
[11] [53] [54] [61] [63] [78] https://pubmed.ncbi.nlm.nih.gov/15828073/
https://pubmed.ncbi.nlm.nih.gov/15828073
[13] [79] https://looksolutionsusa.com/wp-content/uploads/2021/02/MSDS-SDS-fluid-2021.pdf
https://looksolutionsusa.com/wp-content/uploads/2021/02/MSDS-SDS-fluid-2021.pdf
[15] https://www.magicfx.eu/data/uploads/documents/MSDS-MFX3060-OIL-BASED-HAZE-FLUID.pdf
https://www.magicfx.eu/data/uploads/documents/MSDS-MFX3060-OIL-BASED-HAZE-FLUID.pdf
[16] [26] [48] [65] MINERAL OIL, EXCLUDING METAL WORKING FLUIDS
[18] https://www.chauvetdj.com/wp-content/uploads/2024/12/SDS-HAZE-FLUID-CHAUVET-HF5-EN.pdf
https://www.chauvetdj.com/wp-content/uploads/2024/12/SDS-HAZE-FLUID-CHAUVET-HF5-EN.pdf
[22] [29] [30] Permissible Exposure Limits – OSHA Annotated Table Z-1 | Occupational Safety and Health Administration
https://www.osha.gov/annotated-pels/table-z-1
[31] APPENDIX B: Particles
[32] Substances with No Established RELs | NIOSH | CDC
https://www.cdc.gov/niosh/npg/nengapdxd.html
[33] PARTICULATES NOT OTHERWISE REGULATED, TOTAL …
https://www.osha.gov/chemicaldata/801?utm_source=chatgpt.com
[34] https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1048
https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1048
[35] https://www.cdc.gov/niosh/npg/npgd0294.html
https://www.cdc.gov/niosh/npg/npgd0294.html
[36] https://www.osha.gov/chemicaldata/378
https://www.osha.gov/chemicaldata/378
[37] https://www.cdc.gov/niosh/npg/npgd0011.html
https://www.cdc.gov/niosh/npg/npgd0011.html
[38] https://www.osha.gov/chemicaldata/51
https://www.osha.gov/chemicaldata/51
[39] [40] https://www.cdc.gov/niosh/npg/npgd0001.html
https://www.cdc.gov/niosh/npg/npgd0001.html
[41] https://www.osha.gov/chemicaldata/570
https://www.osha.gov/chemicaldata/570
[49] https://www.researchgate.net/profile/Sunil-Varughese/publication/279481832_Respiratory_health_impacts_in_the_entertainment_industry_from_exposure_to_theatrical_smokes_and_fogs/links/5f6cb23aa6fdcc008638a55a/Respiratory-health-impacts-in-the-entertainment-industry-from-exposure-to-theatrical-smokes-and-fogs.pdf
[50] [60] [73] https://pubmed.ncbi.nlm.nih.gov/15884183/
https://pubmed.ncbi.nlm.nih.gov/15884183
[51] [80] Theatrical Fog Review_12.15.17
[56] [84] https://www.researchgate.net/publication/400877086_Aerosol_Pollution_and_Data_Scarcity_Citizen_Sensing_of_Glycol-Based_Theatrical_Fog_Exposure_in_Theme_Parks
[57] [58] https://pmc.ncbi.nlm.nih.gov/articles/PMC1740047/
https://pmc.ncbi.nlm.nih.gov/articles/PMC1740047
[64] https://www.actsafe.ca/wp-content/uploads/2022/08/Atmospheric-Effects-in-the-Entertainment-Industry-Report-PDF.pdf
[66] https://pmc.ncbi.nlm.nih.gov/articles/PMC4662840/
https://pmc.ncbi.nlm.nih.gov/articles/PMC4662840
[67] https://doh.wa.gov/sites/default/files/2023-05/333-312.pdf
https://doh.wa.gov/sites/default/files/2023-05/333-312.pdf
[71] [72] [83] https://actorsequity.org/docs/librariesprovider2/resource-documents/safe-sanitary/calibration-factors-revised-2024-04-15.pdf?sfvrsn=4acc47ff_1
[74] [76] https://www.iatse.com/_content/documents/public/IA170101%20Fog%20Final%20Rev%201%20April%209%202018.pdf