Healthy indoor air quality
How to keep wildfire smoke out of homes with mechanical ventilation systems
...air. Window air conditioners should not be used during wildfires, unless their outdoor air intake can be closed.
A portable air cleaner is recommended to complement air sealing and filtering measures during a wildfire. The air cleaner should have a High Efficiency Particulate Air (HEPA) filter, which blocks 99.97% of p...
