Ultra-strong filtration system to completely block dust and particles and prevent secondary diffusion 1 anti-countercurrent dust collecting cup: collecting large particles and a small amount of residual liquid 2 filter: filter PM2.5, dust, insects and other particles or moisture 3 turbocharged fan: 120W powerful booster fan, faster speed, more power A variety of small accessories, so that nowhere to hide dust 1 small brush: suitable for cleaning the air outlet, press the keyboard dust 2 suction is the longest, suitable for cleaning the gap, corner dust