Replacement HEPA Air Purifier Filter for GCZ Air Purifier AP402 CADR 420; Original

H13 True HEPA Filter: GCZ HEPA air purifier is equipped with a 4-stage filtration system including pre-filter; true H13 HEPA filter; activated carbon filter; non-woven fabric filter; captures particles as small as 0.3 microns; can reduces up to 99.97% of germs; dust; pollen; pet dander; mold; smoke; hair; and odor. Filter Replacement Reminder: Our machines come with a 3000 hour filter change reminder. When the filter is used for 3000 hours; the indicator light will flash. Depending on air conditions; we recommend you replace the filter every 6-8 months