Electrostatic Filter for Fresh Air ONE Professional Series Air Purifier - AP-H600ADESCRIPTION The Electrostatic Filter is designed for use with the Fresh Air ONE Professional Series Commercial Air Purifier AP H600A. This reusable filter helps capture airborne particles such as dust and larger contaminants using electrostatic attraction, supporting cleaner air and protecting the performance of the purifier. It is ideal for commercial and professional environments where regular maintenance and consistent air quality are essential.