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This helps prevent polluted air from re-entering the room and gives the purifier a better chance to keep the air clean

Have a local HVAC pro test my indoor air quality Yes, please

To be certified, an air cleaner must pass electrical safety tests and, for electronic cleaners, must not produce ozone greater than 0.050 parts per million (50 ppb)

The purifiers smoke-busting prowess comes from its interior True HEPA filter, which reduced concentrations of PM2.5 and PM10 particles in less than half the time of the next-best model

Before joining Good Housekeeping in 2022, Nik worked in the labs of MIT and Regeneron on projects ranging from chemical inventory and reporting to bioassay development