Buyer’s Guide: How to Pick the Right Air Purifier

Energy-efficient homes are excellent for keeping out external pollutants, but they can also trap various indoor pollutants. According to the EPA, indoor air can be 2-5 times more polluted than outdoor air. For those concerned about respiratory health, air purifiers can provide some relief. Here’s what you need to know before purchasing one.

Can Air Purifiers Help?

While the best method for improving indoor air quality is ventilating with clean outdoor air, that’s not always possible. Air purifiers can be a viable solution, especially for single-room applications, as they can’t filter an entire home like an HVAC system.

Considerations When Shopping for Air Purifiers

1. Cost of Replacement Filters

  • Pleated Filters: Need replacing every 6-12 months.
  • Activated Carbon Filters: Need replacing every three months.
  • Cost Range: Between $20 and $200.

2. Size of the Purifier

  • Room Compatibility: Make sure the purifier is appropriately sized for the room.
  • Manufacturers’ Claims: Take these with a grain of salt; it’s better to size up.

3. Noise Levels

  • Sleep Quality: Noisy purifiers can disturb sleep, defeating their purpose.
  • Decibel Rating: A 50-decibel rating is roughly equivalent to a refrigerator’s noise level.

4. Certifications

  • Energy Star: Indicates energy efficiency.
  • AHAM Verifide: Indicates the purifier has been tested by the Association of Home Appliance Manufacturers.

Tips to Enhance Air Purifier Effectiveness

  1. Vacuum Regularly: Removes pollutants that can get recirculated.
  2. No Smoking Indoors: Smoking is a major source of indoor air pollution.
  3. Ventilate on Clear Days: When air quality outside is good, open windows to circulate air.


Improving your home’s air quality can be as simple as choosing the right air purifier. Keep the above considerations in mind, and you’ll be well on your way to breathing easier and living healthier.

Leave a Comment