Air Purifier, has outside fresh air blow in function
Removes dust：Captures up to PM2.5 of 99.98% for per hours. Depth removal haze: Effictively remove harmful gas from haze. Efficient: Captures up to formaldehyde of 98.2% for per hour. Long-acting: Gascom filter is valid for up to 3 years. Filter combination thickness is 28.5cm, it's 5.7 times that of ordinary purifiers, the filter of ordinary purifier is just 5cm.