Breathe fresh air from now on with this air purifier replacement filter! This replacement filter is designed with an upgraded 3-stage filtration, including a pre-filter, H13 HEPA filter and an activated carbon filter. The true H13 HEPA filter captures up to 99.99% of airborne particles and allergens as small as 0.1 microns. Featuring a powerful purifying capacity, this air purifier replacement filter helps you solve the problem of unpleasant odors, smoke, air dust, pet dander, cooking fume, hair, lint and more. What's more, the filter is easy to replace and install with no tools required. You can enjoy clean & healthy air anywhere after a quick setup.