Alen BreatheSmart 75i Large Room Air Purifier, Medical Grade Filtration H13 True HEPA for 1300 Sqft, 99.99% Airborne… Price: $748.99 (as of 14/06/2021 14:34 PST- Details) & FREE Shipping.

QUIETLY POWERFUL: Cleans 1300 SqFt every 30 minutes and eliminates airborne pollutants fast. Designed by NASA airflow engineers, the 75i is twice as quiet as key competitors making it perfect for any large space.
ALLERGIES & DUST: Recommended for allergens, dust, dander, fur, household odors, all while preventing the growth of mold and bacteria. The Pure filter has a high capacity True HEPA layer to capture 99. 97% of airborne particles down to 0. 3 microns. Includes a prefilter that can be vacuumed to help increase filter life.
6 AIR QUALITY COLORS: A Laser Smart Sensor detects airborne particles and auto-adjusts with changes in your environment. Blue = Excellent, Green = Good (low levels of particles), Orange = Fair, Red = Poor, Purple = Bad air quality (high levels of particles). Watch the sensor change color in real-time as your air is being cleaned!