... for auto, room and public place 2.liquid air freshener 3.air control machine electric air freshener :1.many functions:a.Eliminate all ... ,neutralize nicotine,prevent smoking harm and tailgas pollution e.Refresh air,refresh mind,balance blood and relieve the driver's fatigue ... %, 99% of the benzene adsorption, and products to the water and air adsorption rate is almost zero, only 0.6% and 0 ...