This Austin Air HealthMate HM400 Air Purifier Allergy Machine is a powerful, portable air purifier that helps eliminate allergens, cooking oil smoke, odors, dust mites, pet dander, bacteria, pollen, debris, chemicals, and mold from any room in your home. With a two-stage cleaning system and True HEPA filtration technology, this air purifier is effective at capturing a wide range of indoor air pollutants. Equipped with three different speeds and a quiet operation, this air purifier is perfect for those who want to enjoy clean air in any room without any loud noises. The air purifier comes with a dial and rotary knob control style, and it is easy to operate. This portable air purifier is made of metal and has a matte finish, making it a durable and stylish addition to your home.