The unit adopts high efficiency forward tilt multi-wing fan, with high quality and highefficiency motor, theunit runs more quietly and the noise is lower. The fan isselected by professional fan software to obtainthe best fan operating point, fan efficiency and noise. Each fan has passed strict and precise dynamic andstatic balance test and safety test, safe and reliable. Fan belt drive, easy maintenance, wide range ofoptional air pressure, a variety of air pressure files can be selected to meet the needs of more occasions.

Standard with mildew resistant plate type coarse nylon filter, with low initial resistance, high efficiency,stable performance, easy to use, repeatable cleaning and use. It can provide higher filtering levels ofprimary and medium filter for customers to choose, and the primary filter efficiency can reach G3/G4; Themedium filter efficiency can reach F5/F6/F7/F8/F9, effectively removing PM2.5 dust particles.