Why Indoor Air Quality Matters

Updated: February 24, 2026

Did you know the average person spends about 90% of their time inside?

Most people are aware of and concerned about outdoor air pollution, but many don’t realize that indoor air quality is just as (if not more) important.

According to results from an EPA study on air pollution, “Indoor levels of pollutants may be two to five times—and occasionally more than 100 times—higher than outdoor levels.”

Pollutants in Your Home

There are three major factors that contribute to indoor air pollution:

1. Particles. Airborne particles like dirt and dust that are stirred up by people, cleaning or remodeling can remain suspended in the air. When you inhale, those particles are breathed in and can cause health issues.
2. Chemicals. Chemical pollutants are some of the most common and harmful air pollutants to your health. These include cleaning products, tobacco smoke and carbon monoxide gas to name a few.
3. Biological contaminants. This category is also broad and includes mold, bacteria, viruses, pollen, pet dander and dust mites. These contaminants can usually be kept under control with proper ventilation, humidity control and general cleanliness.

Indoor Air Quality and Your Health

Poor air quality in your home can cause a wide range of health issues. The most common symptoms include:

• Allergic reactions
• Coughing
• Headaches
• Shortness of breath (asthma)
• Sneezing
• Dizziness
• Fatigue

Keeping Your Air Clean

A few simple preventative measures can help increase your indoor air quality high. First, you should change your air filters often (at least every 3 months).

Secondly, you should also have a skilled HVAC technician clean your ductwork every 5-7 years to keep dust and debris to a minimum.

Thirdly, consider installing a central air purifier to keep the humidity level in your home at a safe and healthy level.

Your health is important. Contact Richmond’s Air today to talk about your indoor air quality and how we can help make it cleaner.