You don't drink the same drink or eat the same food as everyone else. Why should you breathe the same air? Customize your air like you customize your burger. Well done! Hold the formaldehyde! Whether you're downwind of a forest fire, living in a newly built home, or just worried about viruses and bacteria, Wyze Air Purifier Custom Filters filter the air to your specific needs, from pet odors and allergens to germs and dangerous gases.