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ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY
AIR CLEANER PURIFIER TYPES
AIR CONDITIONING SYSTEM ODORS
AIR POLLUTANTS, COMMON INDOOR
AIR QUALITY IMPROVEMENT STRATEGIES
AIRBORNE PARTICLE ANALYSIS METHODS
ALLERGEN TESTS for BUILDINGS
ASBESTOS IDENTIFICATION IN BUILDINGS
BACKDRAFTING HEATING EQUIPMENT
BLACK MOLD, TOXIC & ALLERGENIC
BLEACHING MOLD, Advice about
BOOKSTORE - ENVIRONMENTAL
CADMIUM in the HOME
CARBON MONOXIDE - CO
CARPETING & INDOOR AIR QUALITY
CAT DANDER in BUILDINGS
CELL PHONE RADIATION
CHEMICAL CONTAMINANTS in WATER
COMBUSTION PRODUCTS & IAQ
DIRECTORY of MOLD / ENVIRONMENTAL EXPERTS
DUST SAMPLING PROCEDURE
EMERGENCY RESPONSE, IAQ, GAS, MOLD
EMF ELECTROMAGNETIC FIELDSRE
ENDOCRINE DISRUPTERS at BUILDINGS
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FLOOR TILE ASBESTOS IDENTIFICATION
FUNGICIDAL SPRAY & SEALANT USE
GAS EXPOSURE EFFECTS, TOXIC
HEATING OIL EXPOSURE HAZARDS, LIMITS
HOUSE DUST ANALYSIS
HOUSE DUST COMPONENTS
HUMIDITY CONTROL & TARGETS INDOORS
INDOOR AIR QUALITY IMPROVEMENT GUIDE
LAB PROCEDURES MICROSCOPE TECHNIQUES
LEAD POISONING HAZARDS GUIDE
LEGIONELLA LEGIONNAIRES' DISEASE
LIGHT, GUIDE to FORENSIC USE
METHANE GAS SOURCES
MILDEW in BUILDINGS ?
MOISTURE CONTROL in BUILDINGS
MOLD ACTION GUIDE - WHAT TO DO ABOUT MOLD
MOLD CONSULTANTS / INSPECTORS
MOLD DETECTION & INSPECTION GUIDE
MOLD EXPERT, WHEN TO HIRE
MOLD RELATED ILLNESS GUIDE
MSDS MATERIAL SAFETY DATA SHEETS
MVOCs & MOLDY MUSTY ODORS
NOISE / SOUND DIAGNOSIS & CURE
ODORS GASES SMELLS, DIAGNOSIS & CURE
OIL, HEATING, EXPOSURE HAZARDS, LIMITS
OIL HEAT ODORS & NOISES
OIL SPILL CLEANUP / PREVENTION
PET ALLERGENS / PET DANDER
PET STAINS & MARKS in BUILDINGS
PLASTIC ODORS-SCREENS, SIDING
PLUMBING SYSTEM ODORS
PVC - VINYL BUILDING PRODUCTS
RADON HAZARD TESTS & MITIGATION
SAFETY HAZARDS GUIDE
SAFETY HAZARDS & INSPECTIONS
METHANE GAS HAZARDS
SEPTIC SYSTEM ODORS
SEWAGE BACKUP TEST & CLEANUP
SEWER GAS ODORS
SMELL PATCH TEST to Track Down Odors
STAIN DIAGNOSIS on BUILDING EXTERIORS
STAIN DIAGNOSIS on BUILDING INTERIORS
SULPHUR & SEWER GAS SMELL SOURCES
UFFI UREA FORMALDEHYDE FOAM INSULATION
URETHANE FOAM Deterioration, Outgassing
VINYL CHLORIDE HEALTH INFO
VOCs VOLATILE ORGANIC COMPOUNDS
WATER ODORS, CAUSE CURE
Ozone gas exposure standards & exposure limits or PELs: this article describes allowable standards for exposure to ozone such as gases produced by ozone generators or ozone air purifiers and including the use of ozone gas generators for mold remediation.
Ozone is widely promoted by ozone generating equipment companies and cleaning services for use in indoor building environments to deodorize, disinfect, "kill" mold, and for "general health". Ozone generators are also promoted for use to reduce the level of airborne particles, pollen, animal dander, and allergens, ostensibly to improve indoor air quality for asthmatics and people with allergies.
While there are some important uses of ozone (such as for medical disinfection under controlled conditions), in general this is an idea which ranges from bad to dangerous in the home, and it is not recommended by the U.S. EPA nor other experts/agencies whose data we have reviewed.
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Ozone is a very strong oxidizer. As it oxidizes a substance ozone will literally destroy the substance’s molecule.
General ozone exposure limits - PELs & TLVs
Common Applications of Ozone
Please see the Ozone applications listed at More Reading just below.
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Frequently Asked Questions (FAQs) About Ozone Exposure Standards & Ozone Generation Applications
Question: I work with ozone generators - how can I see if I have injured myself
After reading this I got very nervous since I work with ozone generators a lot. How can I see if I have already caused myself too much damage to have bad long term affects? Is there a way to get tested? - Josh 11/30/11
Reply: 3 Steps to Assessing Possible Harm from Exposure to Ozone Gas O3
Josh, by no means do we advocate panic about ozone, but rather we caution about the importance of distinguishing between long and well-established valid Ozone O3 applications whose effectiveness is accepted and well documented and other O3 applications whose effectiveness is questioned or perhaps completely refuted by experts. And we note a third category of ozone issues arising from over-dosing or over-exposing environments or people. Details are at OZONE TOXICITY.
To answer your question more specifically, that is, have you been injured by ozone exposure, a topic on which I am NOT expert, I can but suggest:
Question: we have been running our ozone air purifier at a high rate and are experiencing symptoms
We have a new air purifier with an ozone cycle option. We didn't know any better and have been using the cycle at a pretty high rate in our home and at our office for a week. Experiencing symptoms. Have we done permanent damage? - Jerry 2/9/12
Jerry, you don't say what ozone symptoms you have been experiencing nor how we can conclude a sure relationship between ozone exposure and those complaints; but a thoughtful answer to how to decide if you've been injured by ozone exposure is in our notes to Josh found just above.
Beyond personal ozone exposure questions, remains the question of whether or not you are or have been overdosing your home with high levels of ozone sufficient to cause secondary oxidation, damage, or odor problems involving the building surfaces, materials, and furnishings. If you don't smell obnoxious odors the answer is probably not. Details about the ozone oxidation problem are at OZONE MOLD / ODOR TREATMENT WARNINGS.
Questions & answers or comments about about exposure limits, PELS, & effects of exposure to Ozone gas.
Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.
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