8 emission head design, effectively improve the unit time of negative ion releasing.
	
Intelligent periodic sequential circuit design, 30-40 minutes working, 7-15 minutes off, ensure the long time work function. Red switch with power supply, led working indicator light.
	
Adopted ABS engineering plastic shell. Hermetical enclosure design, high pressure side (launching) of louvers, effectively prevent electric shock.
	
Ozone 0.05 parts per million.
	
Cartridge design, can be flat, can also be hanging.