4 in 1: This allergies house air cleaner is a HEPA filter, humidifier, ionizer, and UV lamp. This air purifier with UV-C sanitizer and ionizer packs all those functions into one silent unit Quiet: These quiet air purifiers for bedroom only produce 18 dB of noise, the same as a whisper five feet away. The HEPA air purifier for large room fits and removes issues almost anywhere Powerful: The Econika H13 room purifier for odors and allergens covers up to 700 sq ft with HEPA 13 protection. The HEPA air filter for pets offers 6 layers of filtration for maximum power Designed for Everywhere: These UVC HEPA filter air purifiers for home work in a kitchen, dorm, apartment, baby nursery, living room, bathroom, dog home, cat home, and indoor rooms