20.0787 Inches

►WIFI CONTROL & CHILD LOCK►Just download the APP to your phone and keep it and the air purifier in the same WIFI network, then you can power on/off the device, set desired fan speed, PM data, timer and working mode (manual, auto or sleep), activate the child lock whenever and wherever you like within range.
►4-IN-1 HIGH EFFICIENT AIR PURIFYING►4-in-1 filtration with a Pre-Filter, Antibacterial Cloth, Activated Carbon Filter, HEPA Filter. CE RoHS certified, this air quality guardian filters all elements like smoke, smell, pollen and 99.97% airborne particles down to 0.3 microns. Moreover, it refreshes the stale indoor air.
►SPACIOUS COVERAGE► I bet you’ll be proud of this powerful air purifier since the home appliance covers your living room, office or other large room up to 325sq.ft / 30m² with a CADR rated 230m³/h. It is designed for your satisfaction.