To have a smarter, healthier life, HEMM team has specially customized DC brushless motors for air purifiers. Our motors have different voltage versions from low to high and have the advantages below: No. 1. The noise is below 35dB; No. 2. Our motors have a life of more than 30,000 hours; No. 3. High efficiency and low-temperature rise; No. 4. Energy consumption is very low, and the power is only about 20w.