1. Pre-filter Mesh: Removes larger particles and dust; 2. Nano-silver Filter: Traps and destroys dust, bugs, bacteria and viruses; 3. Carbon Filter: Absorbing harmful gas and odor effectively; 4. Medical Grade HEPA Filter: High efficiency particulate air filter remove motes, virus and bacteria which with diameter about 0.3 micron; 5. Photocatalyst Membrane:Deodorizes when activated by UV lamps remove and decomposing harmful gases such as formaldehyde, benzene, oxynitride and so on; 6. Photocatalyst Lamps x 2 (UV): Kills bacteria and viruses, activates the photo catalytic membranes; 7. Negative Ion Generator:Produces negative ions ( 3.0*106 pcs/cm3 ) to settle dust particles, kills bacteria and viruses, which makes you enjoy yourself into a natural forest bath

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