Dual-use for table and floor & Allergen removal for allergy-sensitive people
Product description：Xiaomi Mi Air Purifier 4 Compact, True HEPA H13 3-Stage Filter System Removes 99.97% of Pollutants as small as 0.3 microns, Smart Home Integration, Whisper Quiet, Just 0.9KW/day, OLED Touch Display
* 172~290ft²（16~27m² ）effective coverage area: As calculated in Air Purifier (GB/T 18801-2015) Appendix F.4: Area of application = pCADR x (0.07–0.12). pCADR data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.
* Traps 99.97% 0.3μm particles: According to the China Testing & Inspection Institute for Household Electric Appliances Inspection Report (No. WCv-21-40115), the filter material used for this product achieved a filtration efficiency of 99.97% for 0.3μm particles.
* 135CFM (230m³/h) Particle CADR: Data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.
* Low-noise 20dB Sleep Mode: Refers to the noise value generated when the product is in Sleep Mode. Data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.
* Only 0.7kWh are needed for 24 hours of purification: 27W x 24h ÷ 1000 = 0.684kWh. 24h power consumption of 0.684kWh, approximately 0.7kWh.
* Alexa is not available in all languages and countries. Alexa features and functionality may vary by location. Please refer to official website for more information.
* 516ft² (48㎡) room size is base on 2 air changes per hour(ACPH), meaning that it can purify a 516ft² (48 m²) room 2 times per hour(assuming the room has a ceiling height of 7.87 ft), room size = pCADR ÷ 7.87 ft ÷2. pCADR data from CVC Testing Technology Ltd. Report no.: WTS2022-4212.
* Room size(up to) is calculated based on 2 air changes per hour(ACPH) and PCADR, meaning that it can purify a room of this size 2 times per hour(assuming the room has a ceiling height of 7.87 ft), Room size = PCADR ÷ 7.87 ft ÷2.
* Effective coverage area is calculated according to the Chinese national standard GB/T 18801-2015, assuming the room has a ceiling height of 7.87 ft and considering factors such as the outdoor particulate pollutant concentration of 300μg/m³ and the number of air changes in buildings, the standard is more stringent. Effective coverage area=(0.07~0.12)*PCADR.
