An Indoor airPLUS home builds upon the energy efficiency foundation of ENERGY STAR, which includes air sealing requirements, including construction specifications like additional moisture and pest control requirements that seal the home from outdoor elements and reduce the transfer of pollutants, including wildfire smoke.

Indoor airPLUS homes include whole building mechanical ventilation systems that provide fresh air for occupants. During wildfire events, occupants can temporarily turn off their mechanical ventilation system to reduce the amount of wildfire smoke entering the home. Then, once the wildfire smoke event has ended, the resident can resume normal ventilation to dilute indoor air contaminants. 

Improved filtration removes particles from the indoor environment, including particles contained in wildfire smoke. The Indoor airPLUS Construction Specifications require a minimum MERV 8 filter to be installed in central forced-air HVAC systems (EPA highly recommends a MERV 13 filter for added protection).