Fresh Air HEPA Filter Fan

– Metal Filter remove large particles, small insects & pollens. Pre-Filter efficiency up to 90%, filters particles         such as mold & spores.
– HEPA Filter H11 grade efficiency up to 95%, filters such as virus.
– Carbon Activated Filter to absorb formaldehyde, benzene, randon & harmful chemical.
– Negative lon Filter attach to positively charged particles in the room, such as dust, bacteria, pollen, smoke,         and other

Slim Silent Fresh Air Supply with quadruple filtration system. Performing in an energy saving, low noise and compact designed structure.