1. Don't pollute your own air!
Be conscious of the air quality in your home and how you affect it. Fireplaces, stoves, candles, air fresheners, and cleaning agents can pollute the air. Use safe cleaning products like Ecodiscoveries Natural Home Cleaning Solutions.
2. Let in fresh air as often as possible.
Even if you live in a polluted urban area, outdoor air is typically much cleaner than indoor air. The fresh air will carry away some of the pollutants that build up in a tightly sealed home. If you're worried about allergens infiltrating your home from the outside (during pollen season, for instance), use a Safeguard Window Filter.
3. Change your HVAC furnace filters on time.
Changing your HVAC filter on time will not only improve your air quality, but it will also save you money on your power bill. To learn more, see When's the Last Time You Changed Your Furnace Filter? For the best air quality, use a high efficiency filter like the AllergyZone Furnace Filter.
4. Put vent filters on your HVAC vents.
Electrostatic Vent Filters will capture any allergens that make it past your HVAC filter. They're inexpensive and easy to replace. You shouldn't cover up all of your vents (because that would be too restrictive on the air flow), but these filters work great for problem areas.
5. Place an air purifier in your bedroom.
The bedroom is the best place for an air purifier since that's where you spend a third of your life. (However, you may also want to use one in your kitchen when you're cooking.) HEPA air purifiers remove 99.97% of allergens from the air. See the Air Purifier Buying Guide for more information.