This air purifier uses a HEPA filter to capture and remove tiny particles in the air including dust, pollen, pet dander, bacteria, smoke and chemicals. Quickly removes smoke and pet odors and removes 99.7 percent of harmful allergens and pollutants. This air filter uses triple air purification technology with activated carbon and ionizing technology. Perfect for a nursery or kids bedroom. Also great for work, study or sleep. Quietly operates with no interruption to you. Touch control panel with 2 speed air purifying intensity and soothing LED lights. Easily adjust to accommodate any need. Removable long-life air filter. The air filter lasts 12 months. Easy to install and replace.