Home / Appliance / Parts / Air Purifier Air Switch F859-0385 Air Purifier Air Switch F859-0385$64.49 Price may not be up-to-date. In Stock View Product Part Number: F859-0385 Brand: WHITE ROGERS CO. Seller: Sears PartsDirect Categories: Appliance, Parts 60-day return policy Description This air switch (part number F859-0385) is for air purifiers. Air switch F859-0385 monitors airflow in the air purifier. Unplug the air purifier before installing this part. Wear work gloves to protect your hands.