What Are the Most Common Indoor Air Pollutants?

Indoor air pollution is a major concern for many people, as we spend most of our time indoors and the air inside can be up to five times more polluted than outside. To ensure we are breathing clean air, it is important to understand the common pollutants that can be found in our homes.

Dust mites, mold, pet dander, volatile organic compounds (VOCs), carbon monoxide, and radon are some of the most common indoor air pollutants. Let's take a look at each one in more detail.

Dust Mites

Dust mites are microscopic creatures that live on carpets, furniture, and other soft surfaces in our homes. They feed on dead skin cells and other organic matter found in dust. While they don't cause any health problems themselves, their droppings can trigger allergies or asthma attacks in some people.

Mold

Mold is a type of fungus that grows in damp areas such as bathrooms, kitchens, or basements. It can cause respiratory problems such as coughing or wheezing as well as allergic reactions. In extreme cases, it can even lead to serious illnesses like asthma or lung infections.

Pet Dander

Pet dander consists of tiny particles of skin and fur shed by cats, dogs, and other animals. These particles become airborne and may cause allergies or aggravate existing respiratory conditions like asthma.

Volatile Organic Compounds (VOCs)

Volatile organic compounds (VOCs) are chemicals emitted from products such as paint, cleaning supplies, adhesives, carpets, and furniture—even electronics! They can cause eye irritation, headaches, nausea, dizziness, and other health problems.

Carbon Monoxide

Carbon monoxide is an odorless gas produced when fuel such as natural gas or gasoline is burned without enough oxygen. It prevents blood from carrying oxygen to organs, which can lead to symptoms like headache, nausea, dizziness, fatigue, confusion, chest pain—all potentially deadly if left untreated.

Radon

Radon is an invisible gas coming from the breakdown of uranium found in soil and rocks. It enters homes through cracks in foundations or other openings. Radon has been linked to an increased risk of lung cancer, along with other respiratory diseases.

How To Reduce Indoor Air Pollution

The best way to reduce indoor air pollution is by limiting exposure to sources mentioned above. Here are some tips for improving your indoor air quality:

  • Ventilate your home: Open windows regularly so fresh air comes into your home.
  • Clean regularly: Vacuum carpets, furniture, etc. often so dust mites & pet dander don't accumulate.
  • Reduce humidity: Use dehumidifiers & exhaust fans so moisture levels stay low & mold doesn't grow.