Smart Air Cleaner with Wi-Fi Control: Control your air purifier from anywhere using the Oxypure app. Adjust fan speeds, set timers, and monitor air quality with a 6-color indicator for real-time updates. Large Coverage for Ultra-Large Spaces: The E500 air purifier is perfect for large rooms and is an essential item for homes and businesses alike. From apartments, offices, schools, nail salons, gyms, classrooms, and restaurants to living rooms, bedrooms, and kitchens, it improves indoor air circulation and purifies the air in a 966 ft²space in just 1 hour.( CADR 217 CFM for pollen, 102 CFM for dust, 114 CFM for smoke).