This is an awesome air purifier from Shark. True to the brand's name and quality ,the product delivers Awesome performance. It's amazing to see how much allergens it traps given it's size. It's so small and compact yet so powerful and purifies the air in a room in minutes delivering fresh clean air. My daughter has severe allergies and this has been a game changer for her. We keep switching the purifier between rooms to get some fresh and pure air in the house.i would very highly recommend it.