IPP Smart Air Purifier with Professional PM2.5 Laser Detector Smart Air Purifier 4 step filters to clean indoor air immediately HEPA high efficiency filter up to 99.99% Air clean for &lt; 50 M home or office room Operated by LCD touch , remote control or Cloud Automatic indicator for filters replacement Modified activated carbon filter Anion (&gt; 3 million/cm) Brushless DC motor with variable frequency APP supported on Apple IOS and Android Net weight 10.5 kg Size 493 x 698 x 222 (mm) Big LCD touch screen with intelligent control UV lamp + photo catalyst filter Power consumption up to 75W CADR at 280 CFM (460 M/hrs.) Noise &lt; 60 dB at max.