The Xiaomi Smart Air Purifier 4 Compact is an effective air purifying device, known for its proficiency in filtering out allergens, pet hair, dust, smoke, and other similar particles. It integrates an electrostatic and activated carbon filter, thereby eradicating at least 99.97% of allergens. This purifier is capable of cleaning a small room in 12 minutes and an area of 517 square feet (ca. 48 m²) in 30 minutes, with adjustable speed for user preference. The purifier also features a companion app that displays the air quality index, allowing users to perceive improvements in air quality. Furthermore, it operates at a noise level 33% lower than other regular purifiers and offers an option to dim or turn off the screen for an undisturbed sleep.
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