This replacement HEPA prefilter captures indoor air particles as small as 0.3 microns. It helps to extend the life of the primary GC Series filter. Fits all IQAir GC Series air purifier filters. This filter is known as F1 on your control panel. 1 each - Made by Magnet
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.