In Colorfil my team is building a brand ready to answer the Call of Doody every day: creating clean, safe, and welcoming spaces for pets and their humans with our award-winning technology, and giving back for every sale to help pets in need. Sure, our filters are pretty to look at--but they work hard, too. Originally designed to protect astronauts and spacecraft, Colorfil changes from pink to yellow as it traps odors, dander, allergens, and more. So you’ll never worry about knowing when to replace your air filter again. Beautiful.