The Holmes HAPF31CS is the correct replacement filter for the following air purifiers:
The Holmes HAPF31 Carbon/Odor Purifier Filter is a replacement filter for several models of Homes air purifiers and the Bionaire BAP755 air purifier. This HEPA filter reduces airborne contaminants and fine particulates in order to provide you with cleaner air and higher indoor air quality. This Holmes carbon filter also reduces common odors, which results in fresher air. This is a genuine Holmes part and is made from quality and durable material.
Holmes HAPF31 Carbon/Odor Purifier Filter specifications: