FAQ What does the True HEPA filter do? The True HEPA filter removes 99.97% of dust particles as small as 0.3 microns and helps absorb odors.How often should the filters be replaced? Depending on usage, especially in extreme environments, the filters may need to be replaced. If odors persist, the filters should be replaced.Can the air purifier remove harmful gases? The air purifier is designed to remove air-suspended dust and odor, but not harmful gases such as carbon monoxide.
