Formaldehyde Filter for Fresh Air One Professional Series Air Purifier AP-H600ADESCRIPTION The Formaldehyde Filter is designed for use with the Fresh Air ONE Professional Series Commercial Air Purifier AP H600A. This high performance filter helps reduce formaldehyde and other harmful gaseous pollutants commonly released from building materials, furniture, and cleaning products. It supports improved indoor air quality in commercial and professional environments, helping create a healthier and more comfortable space. FEATURES