Indoor Air Pollutants and Allergy Sources
- Carpets, cushions and stuffed toys containing dust mites, bacteria, carpet beetles or mold.
These biological organisms and their by-products become aerosolized when these items are walked on,
sat on or played with.
- Off-gassing of irritating volatile organic compounds from carpets, furniture, vinyl-fiberglass screens,
leveling compounds, floor tile adhesives, household chemical products and heated plastics in computers,
video monitors and photocopiers.
- Mold contaminated heating or cooling systems and supply ducts.
- Humidifiers, dehumidifiers, refrigerator drip pans and coils containing mold or bacteria.
- All pets due to dander/skin cells, feathers, dried saliva on fur (especially cats) and in the case of
dogs and cats, all of the pollutants brought indoors on paws or fur after being outdoors.
- Scented products: shampoos, candles, sprays, cleaners, detergents, fabric softeners, air fresheners, etc.
- Fish tank filtration and aeration systems bubbling algae and other bioaerosols into the air.
- Cedar walls and mothballs emit chemicals that can irritate people sensitized to them.
- Insect body parts, fecal material and rodent or animal urine/feces in attics, crawl spaces or living areas.
- Combustion gases and particulate matter from environmental tobacco smoke, unvented kerosene and gas space
heaters, woodstoves, fireplaces, gas stoves, faulty chimneys or flues and cracked furnace heat exchangers.
- Soot particles from burning candles in jars. Firewood stored indoors (insects/mold).
- Carbonless paper can cause allergic reactions in some people who handle the forms, which causes chemical
particulates to become aerosolized.