Honeywell HPA250B Bluetooth Smart True HEPA Allergen Remover HEPA ALLERGEN REMOVER FROM HONEYWELL: Recommended for large rooms (310 sq. ft.), this air purifier helps capture up to 99.97% of airborne particles as small as 0.3 micron, like pet dander, pollen, dust, mold & smoke. Also helps capture germs & odors. BLUETOOTH TECHNOLOGY: Download free app to connect via Bluetooth with your iPhone or Android device for high-tech advanced controls, , including a proximity sensor, auto-off timer, allergen alert settings, custom schedules, filter reminders & more! FILTER AND CIRCULATE AIR 5 TIMES AN HOUR: Our air purifiers filter & circulate air in the stated room size up to 5 times an hour so you can relax & breathe easy, knowing the air in your home is cleaner, and contains fewer allergens, bacterias & viruses HONEYWELL AIR PURIFIERS: Use Certified HEPA filters in air purifier to remove allergens, dust & other particles from your air. If you have allergies or pets, air purifiers do more than freshen air, helping remove airborne particles & improve air quality. HONEYWELL QUALITY: Improve your air quality with Honeywell air cleaners, odor reducers, and air purifiers. Compare to similar products from Germ Guardian, Dyson, Holmes, Levoit, Molekule, Blueair, Winix, Coway, Oreck, AirMega, RabbitAir, and Rowenta.