Efficient smoke purification, fast purification Quadruple purification filtration system: adopts multiple purification technologies such as high-efficiency HEPA filter and activated carbon layer, which can easily filter smoke, PM2.5, second-hand smoke, pollen, pet hair and other harmful substances, and the efficiency of smoke purification is up to 99% or more. Strong airflow design: rated airflow can reach 150 cubic metres per hour and above, quickly circulating indoor air, rapidly reducing the concentration of smoke and keeping the air fresh. Low noise operation, quiet comfort Silent motor technology: Adopting DC brushless motor or silent motor, the operation noise is as low as 20-48.9dB, which will not disturb the rest even at night. Intelligent speed adjustment function: support multi-step wind speed adjustment, you can choose silent mode or strong mode according to the actual demand, to meet the needs of different scenes. Intelligent and convenient, easy to operate Touch/remote control: Equipped with touch panel or remote control, it supports one-key switch, wind speed adjustment, timer shutdown and other functions, which is easy and fast to operate. Intelligent sensing system: some models support PM2.5 sensor real-time monitoring of air quality, automatically adjust the wind speed to ensure that the indoor air is always fresh. Wide range of applications and scenarios Family use: Suitable for living room, bedroom, kitchen and other family scenes, effectively purify the smoke and odour produced by smoking. Commercial use: Suitable for chess and card rooms, teahouses, offices and other commercial places to enhance air quality and improve customer experience.