Specifications HEPA H13 Filter: A 3 in 1 filter system is completed by an active and prefilter carbon filter to remove 99.97% of particles from 0.3 ?m such as powder, pollen, dust mites, thin powders, mold, formaldehyde, etc. Powerful enough for use in large rooms with a size of up to 25 m2 and Clean Air Delivery Rate of 150 m3/h. Click on the S icon to activate the Smart mode, the sensor automatically detects the air quality and automatically selects the most suitable speed of the wind speed at 3 levels. The LED button on the air outlet at the top of the air purifier can turn off the light easily. Hold the "S" button for 3 seconds to set the timer and choose the time you need, 2 h/4 h/8 h to save energy. 3 types of speed settings (low, medium and high) on the screen offer different options. Hold the wind speed button for 3 seconds to switch to sleep mode. It doesn't disturb the lights. The operating noise is reduced. about 24 dB). Keep your sleep completely dark and quiet. The effect of the ionizer is mainly due to the bond effect of the powder, and with other particles it encourages a larger cluster. These clusters can be filtered better by an air purifier. Advanced technology and materials ensure that no ozone is produced. The filter lasts 6-12 months. varies depending on the air quality of the region. If the wind speed button flashes, please replace the Model Number filter. : B-D02H Power supply: DC24 / 1A Net weight: 1.6 kg DB roughness (A): ?50dB (A) / Suspension mode: (about 24dB) Absorption (W): 16 watt Applicable range: 20-25m2 Size: 180*180*282(mm)