Question: What is the MERV Rating of the BoAir 5-Stage electrostatic filter?

The BoAir 5-Stage electrostatic filter like all electrostatic air filters doesn’t have a MERV rating. MERV ratings are only used to rate media types of air filters such as pleated filters and Hepa filters. But if you compare the Arrestance rating of the BoAir 5-Stage electrostatic filter, which is over 95%, the media type filters with similar Arrestance ratings it is equivalent to a Merv 6 or a Merv 8 filter.

A furnace filter with a Merv 8 rating is suitable for use in you air conditioning or heating system if you don’t suffer from allergies but if you require more efficient filtration to manage your allergies I would recommend a Merv 10 to 12 pleated filter.