The 4-in-1 Air Purifier is perfect for allergy sufferers. True HEPA media captures 99.97% of allergens including pet dander， dust mites and pollen. According to the American Academy of Pediatric Allergy and Immunology， doctors recommend HEPA air filtration to reduce exposure to indoor asthma triggers. More than just a filter， the UV-C light helps to kill germs， while the charcoal filter captures odors. CADR Rated 125+ and standing 28 in. tall， it is lightweight and ideal to use in medium to large sized rooms. The easy-to-use smart app that allows you to monitor the air quality in your home from EVERYWHERE. This Smart Air Purifier is Voice Control Capable with an Alexa Skill. It includes SmartAQM， an Air Quality Monitor that detects the amount of particles in the air and automatically adjusts the speed to optimize room air quality when in auto mode. The Guardian Technologies App will tell you when you need to replace your filter or bulb and will also keep you updated on the allergy conditions in your area! Choose from 5 speeds， including a low speed that runs ultra-quiet and is energy efficient. The Elite Collection provides both form and function to provide a superior air cleaning system. The simple， stylish design looks great in any home environment.