Description: Do not let the cold get you down this season, or the hay fever get you down the next. If you already own our Air Purifier, you can continue to breathe easy long into the future with our Air Purifier Filter Replacement. The filtration system has three layers to effectively free the air inside your home from contaminants. The air first passes through the pre-filter that traps larger particles. The H11-grade HEPA filter removes 99.97% of household dust, allergens and other harmful particles as small as 0.3 microns from the air. Finally, the active carbon filter gets rid of lingering odours so that you end up with clean air that is completely healthy to breathe. Go ahead a have a breath of fresh air with our air purifier filter replacement, which will get your air purifier working as good as new.