Crystal actually being good air purifier, car air purifier 8015. minute of effective removal of harmful substances in the air 1, HJR-8015 contains four launched a strong motor, four-minute power 4,5 2,2 cleanup once a negative ion generator anion content 22 million / cm3 3, built-in lithium battery, do not worry about parking after exposure to pollution 4, the strong wind circulation system, large decontamination area, purify the air inside the car model 8015 timing for an area of ??10 square-free closed-circuit security DC 12v 50Hz 15W input power is no internal power supply remote control isolated switching power supply 7 heavy wind speed stalls purification purification four plastic fan blower sound noise <30dB Main Material ABS filter size 140mm * 90mm * 20mm Weight 1.5Kg Power cord length 1.2M air volume 120m3 / h Size 250mm * 180mm * 50mm clean air volume 100m3 / h outdoor air pollution, the air inside is not necessarily much better. Formaldehyde, bacteria, PM2.5, secondhand smoke, dust ...... are a major threat to the car. A serious threat to your health, resulting dizziness headache, colds, runny nose, sore throat, memory loss, second-hand smoke. Faced with the multiple challenges of pollution, you still use this car cleanup items (charcoal adsorption package, car perfume), you OUT! Now use car air purifier is king, so your family is no longer threatened by pollution car! ! More details at the official website to do: http: //www.zjhjr.com/index.php/mingxingxilie/2014/12-20/15.html