To get the most from a whole-home air purifier, also seal duct leaks (so unfiltered air can’t bypass the filter), upgrade to a higher-MERV filter on the return, add UV light at the coil, control humidity with a whole-home humidifier or dehumidifier, and add fresh-air ventilation via an ERV or HRV. Each layer compounds the benefit.
Layered IAQ strategy
- Aeroseal duct sealing to stop bypass air
- High-MERV or media filter on the return
- UV-C light at the indoor coil
- Whole-home dehumidifier or humidifier
- ERV or HRV for fresh outdoor air
Start with an indoor air quality test to know what to target. See all options on our indoor air quality page.
