1. High-density plasma ionization technology, quickly remove smoke and particles in the air 3. Only 12V DC power supply is required, low consumption, saving and environmental protection, suitable for long-term use. 4. Optimized internal structure design, very low noise during operation, does not affect . 2. Generate a large number of negative ions, effectively freshen the air and improve indoor air quality. 5. Made of high-quality materials to stable operation for a long time and long service life.