10 Ways to Improve Indoor Air Quality

What is Indoor Air Quality and Why Is It Important?

You may not realize it, but the air inside your home can be 2 to 5 times more polluted than the air outside, according to the Environmental Protection Agency (EPA). Everyday items such as carpets, synthetic furniture, cleaning products, and even clogged air filters release harmful particles and chemicals into the air, significantly lowering indoor air quality. These pollutants can contribute to respiratory problems such as asthma and chronic obstructive pulmonary disease (COPD), and may also aggravate allergies. Fortunately, there are many effective strategies to improve the air you breathe indoors, helping to protect your family’s health.

10 Easy Ways to Improve the Air Quality In Your Home

1. Change Your Air Filters Regularly

One of the easiest and most cost-effective ways to improve indoor air quality is by replacing your HVAC system’s air filters regularly. Dirty filters can circulate dust, pollen, and other pollutants. Replacing filters every 1–3 months helps keep air clean and improves the efficiency of your HVAC system, saving you up to 15% on energy bills. Filters with high MERV ratings (6–13) offer better filtration, but be sure to match the filter to your system’s specifications to avoid reduced airflow.

2. Improve Ventilation

Proper ventilation is essential for healthy indoor air. Open windows and doors regularly to allow fresh air to circulate, especially while cooking or after cleaning. Be cautious, however, of outdoor air quality, especially if you live in areas with high pollution levels. Using exhaust fans in bathrooms and kitchens can also help remove moisture and pollutants directly from their source

3. Add Some Greenage

NASA researchers have discovered that there are many varieties of plants that reduce indoor pollution. Certain plants, such as peace lilies, spider plants, and snake plants, act as natural air purifiers. They help remove toxins like formaldehyde and carbon monoxide while adding beauty to your living space. Although plants alone won't completely clean your indoor air, they are an excellent supplement to other air-cleaning strategies.

For more information, read our blog: 10 Best Air Purifying Plants

4. Don’t smoke in the house

Cigarette smoke contains over 4,000 harmful chemicals, many of which are carcinogenic. Secondhand smoke can linger in furniture, curtains, and carpets, posing a significant health risk to household members. If you or guests smoke, always do so outside to prevent airborne toxins from contaminating indoor spaces. If you or your guests need to smoke, take it outdoors.

5. Test For Radon

Radon is an odorless, radioactive gas that can seep into your home from the ground. It is a leading cause of lung cancer, second only to smoking. Testing your home with an affordable radon detection kit can identify unsafe levels and help you take the necessary steps to mitigate the problem.

6. Keep Floors and Surfaces Clean

Regular cleaning is key to maintaining good indoor air quality. Dust, allergens, and pollutants accumulate on floors, furniture, and bedding. Use a vacuum with a HEPA filter to capture fine particles, and mop hardwood or tile floors regularly to remove any lingering dust. Wash bedding in hot water weekly to reduce dust mites.

7. Use Natural Cleaning Products

Household cleaners often contain volatile organic compounds (VOCs) that can degrade indoor air quality and cause irritation. Natural alternatives like vinegar, baking soda, and lemon juice are just as effective at cleaning without releasing harmful chemicals into the air. This simple switch can make a big difference in the air you breathe.

8. Use Air Purifiers

Air purifiers, particularly those equipped with HEPA filters, are highly effective at trapping particles like pollen, pet dander, and dust mites. They can be especially helpful in homes with pets or allergies. Place purifiers in high-traffic areas like bedrooms or living rooms for best results.

9. Control Humidity Levels

High humidity can encourage mold and mildew growth, which negatively impacts air quality and can trigger respiratory issues. Using a dehumidifier to maintain humidity levels between 30% and 50% can prevent mold growth and improve air quality.

10. Choose Cleaner Burning Candles

Many traditional candles, especially those made from paraffin, release harmful chemicals when burned. Opt for beeswax or soy candles instead. These cleaner-burning options emit fewer pollutants and can even help purify the air by releasing negative ions that neutralize toxins.