External filter pad——Prevent dust and improve efficiency
Features:
External air filter, working as a first screen,is capable of filtering ambient impurity (>1mm), like fluff, moth,fly etc. Effetively improve indrawn air quality to extend the life span of evaporative ventilator.
Two pieced splice design and guide rail installtion make it easy to replace and cleaning.
Made of nylon fiber with superior weatherability and durability. Keep low resistance and high air flow; washable and reusable.