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Common Indoor Air Pollutants

Indoor air quality is important for human health because high-quality indoor air can help us to live, breathe and work better. However, many common air contaminants often make their way into indoor environments, putting humans at risk of both short and long-term health effects. There are different types of air pollutants but according to the Environment Protection Agency (EPA), common air pollutants have two to five times higher concentration levels indoors than outdoors.

As revealed by research, the average American spends an estimated 85% or more of their time indoors so the quality of indoor air is crucial to protecting yourself from long-term health damage.

Here is a list of some of the more common indoor air pollutants:

Pet Dander

Occupants can be prone to allergies from pet dander, which comprises microscopic skin shed from pets like dogs, cats, birds or rodents. Besides, dried saliva, feces, urine and other particles from pets can also become airborne and cause adverse reactions in owners when they inhale them.


Lead is dangerous as it has adverse effects on the nerve systems of humans. Often found in paint in old buildings, it becomes particularly dangerous as the paint containing the lead particles starts peeling off or chipping, disseminating the lead particles into the air and thus causing pollution. 


A chain of three oxygen molecules, ozone reacts with sunlight to create smog, which is a toxin with long-term exposure risks of exposure. In regions with more smog, ozone can directly impact the quality of indoor air.


Though an outdoor air pollutant, pollen can impact the quality of indoor air when it enters homes through open doors and windows especially during spring and summer. Besides that, pollen can also be brought inside by pets going outdoors and then coming back inside.

Volatile Organic Compounds (VOCs)

VOCs are found in products such as paints, varnishes and adhesives and are emitted in gaseous forms making it easier for occupants to inhale as they linger in the air. They can cause nervous system and respiratory problems.

Nitrogen Dioxide

Unventilated or poorly ventilated gas stoves will cause the levels of Nitrogen Dioxide to rise in indoor environments leading to eye, nose and throat irritation as well as severe respiratory or pulmonary edema.


Mold grows in moist or wet indoor environments especially in bathrooms and along window sills. It emits microscopic spores into the air which are easy to inhale and can cause different degrees of severity of infection.

Carbon Monoxide

Often the silent intruder, Carbon Monoxide is emitted from running vehicles in attached garages, combustible appliances and tobacco smoke. Prolonged exposure can poison and kill.

Sulfur Dioxide

Sulfur dioxide is a byproduct of burning sulfur containing combustible products, such as coal, oil or diesel and is toxic by nature. Homes near to large sulfur-burning sources can be exposed to this gas, which can cause shortness of breath and breathing difficulties.

Protect yourself from indoor air pollutants. 

The Low Noise UVC Car Mini Air Purifier purifies personal spaces such as your bedroom, living room, bathroom, office and car. It has a strong air flow that allows a cover up to 100 FT²/10M² cleaning the air in 10 minutes. It is the same size as a water bottle and really easy to carry. 

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