High-efficiency air purifier for small, medium and large rooms: Our KJ150 air purifier is equipped with an H13 true HEPA filter and a 3-layer high-efficiency filtration system, which can filter and purify the air five times per hour for a room with an area of 206 Ft² and once for a room with an area of 1084 Ft². It is very suitable for home and office scenarios, giving you a new and comfortable air environment all day long in your home or office.

【22 dB Ultra Quiet & Sleep Mode】-🌿 In sleep mode, the sound is as low as 22 dB, which is very quiet and will not wake up or disturb the sleep of you and your family, including your pets. If you do not operate it within 10 seconds, the smart screen will turn off and maintain silent operation to purify the air, provide you with a quiet and comfortable environment without light and enjoy high-quality sleep.

【Energy Saving & Money Saving】-🌿 Power in normal mode is 5W: only $0.08 per week for continuous operation (24h/7 days). HEPA air purifiers are perfect for bedrooms, large rooms, small rooms, offices, living rooms, nurseries, kitchens and basements. 3 fan speeds, Normal-MAX-Sleep-Nightlight mode, 5 timing modes: 1, 2, 4, 8 and 12 hours, you can achieve maximum energy savings depending on the specific mode you set!

【Very easy to use and filter replacement reminder】-🌿The air purifier has a filter with a lifespan of 1500 hours, it is recommended to replace the filter at least once every 3-6 months or so depending on your living environment to achieve the best purification effect.