xTool HEPA Composite Filter (3 packs)

Features

• Included in the kit are HEPA composite filters which have four filter layers.
• [Pre-filter Layer] Made of nonwoven cotton, the pre-filter layer has good air-permeability and is capable to remove large particles of dust.
• [Fine Absorption Layer] This layer is made of high-quality tightly-woven materials and capable to remove ultrafine particles.
• [Activated Carbon Filter] This layer is made of porous carbonaceous materials with many big holes which enlarge the area exposed to air 20 times. As soon as having a contact with air, it will start absorbing harmful gas molecules. It can absorb large-molecule organic gases like benzene, small-molecule gas pollutants like hydrogen sulfide and formaldehyde, and odors.
• [HEPA Filter] Composed of a mat of fine fibers, this layer has tiny holes and high absorption capacity. The HEPA filter is effective in removing particles and efficient in purifying. It can remove 99.7% of particles with a diameter equal to or greater than 0.3 µm and 99% of fine particles with a diameter of 2.5 μm (PM2.5), and filter out particles that are 100 times smaller than PM2.5.
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