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Reviews (1)
02 March 2019
Good value & quality
We use this filter set to maintain a clean room within my house. During wildfire season, this filter set in a BlueAir 600 - oversized for the 10x10 room - keeps the particle count for >0.5 micron smoke to high single digits per cubic foot, while outdoors is 15,000-40,000; and keeps the EPA-standard 2.5 micron particles to 0-3, while outdoors is in the "unhealthy for all persons" range.