𝐀𝐇𝐀𝐌 𝐕𝐞𝐫𝐢𝐟𝐢𝐞𝐝 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞: AHAM Verified performance provides trusted validation of air purifier capabilities. DREO Air Purifier is independently tested and AHAM Verified with a Clean Air Delivery Rate (CADR) of 158 CFM. It refreshes the air every 12.4 minutes in rooms up to 245 sq. ft. (4.8 ACH). Based on 1 air change per hour (1 ACH), it covers spaces up to 1,176 sq. ft. 𝐅𝐚𝐬𝐭𝐞𝐫 𝐀𝐢𝐫 𝐑𝐞𝐟𝐫𝐞𝐬𝐡𝐦𝐞𝐧𝐭: Enjoy cleaner air sooner by reducing particles and odors, helping you and your family breathe more comfortably. Powered by DREO TurboPure, the large air intake and 360° spiral airflow design deliver improved intake efficiency for faster air circulation. The DREO 3-in-1 HEPA filter combines a pre-filter, HEPA filter, and activated carbon layer to capture up to 99.97% of particles as small as 0.3μm, including PM2.5, pollen, dust, and smoke, while helping reduce odors. 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐀𝐢𝐫 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠: Stay informed about your indoor air quality. The high-precision PM2.5 sensor continuously monitors particles in real time and displays AQI levels from 0–999 on the LED screen, helping you understand air quality changes. The 4-color RGB indicator light(blue, green, orange, and red)provides air quality recognition. A transparent filter viewing window allows you to check filter condition and system status , making maintenance easier and your purification experience more transparent. 𝐐𝐮𝐢𝐞𝐭 𝐄𝐧𝐞𝐫𝐠𝐲 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲: Experience quiet, uninterrupted air purification day and night. Powered by an efficient BLDC motor with a bottom air inlet and spiral intake grille, the optimized airflow design reduces operating noise to as low as 18 dB*, making it ideal for bedrooms, nurseries, and home offices. ENERGY STAR certified performance uses around 162 kWh annually, helping keep energy costs low for everyday air purification.*Tested by a third-party laboratory using Air Purifier 539 (DR-HAP009) at the lowest fan setting. 𝐕𝐞𝐫𝐬𝐚𝐭𝐢𝐥𝐞 𝐏𝐮𝐫𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐌𝐨𝐝𝐞𝐬:Choose from Auto, Turbo, Sleep, and Normal Mode with 4 fan speeds to match different purification needs. Auto Mode automatically adjusts fan speed based on real-time air quality. Sleep Mode turns off display lights for undisturbed rest and wakes with any button press. Normal Mode offers four manual fan speeds for everyday control, while Turbo Mode delivers maximum purification power when faster cleaning is needed for wildfire smoke, pet dander, pollen, and more. 𝐄𝐚𝐬𝐲 𝐅𝐢𝐥𝐭𝐞𝐫 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞: Spend less time on maintenance and enjoy worry-free operation. The intelligent filter life algorithm calculates actual filter usage every hour based on operating conditions, providing more accurate replacement reminders through the indicator light. A built-in 12-hour timer makes it easy to schedule operation for sleep, work, or when you’re away, helping deliver clean air whenever you need it. 𝐃𝐑𝐄𝐎 𝐎𝐫𝐢𝐠𝐢𝐧𝐚𝐥 𝐑𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐅𝐢𝐥𝐭𝐞𝐫:To ensure purification performance and precise compatibility with your unit, we recommend choosing the DREO original replacement filter DR-HPA038 White. This not only guarantees optimal device operation but also helps extend the lifespan of your machine to a certain extent. (The unit comes with one filter DR-HPA038 pre-installed internally.)