The plasma air sanitizer is a special high-pressure positive and negative ion generator. Positive ions are generated by the sawtooth positive, in the end positive ion state constantly produce high energy, high concentration of bacteria and respirable particles (including haze PM2.5). Surrounded by it, it quickly gains saturation power. Flat positive bacteria and respirable particles (including haze PM2.5) are surrounded by positive ions and can quickly gain saturation power.