What is anion? In short,it is the negative ions. How does it work? Negative ion will always bonded with positive particles around you such as dust, dander, bacteria, they become too heavy to float, and no longer affect the air quality of the surroundings. Life example:you may feel air is fresher than usual in a thunder weather.It is because there are more ions in the air. That is the effect of anion. Why does people need it? The bad odor such as cigarette's smell,unbearable odor may cause people unbreathable and cause headache,carsickness,even respiratory disease. What is the advantage of it compared with other air purifier? It is portable and quite,people can wear to anytime and anywhere and protect you from bad odor personally. Home use big air purifier is hard to used in public place. And the mouth mask is unconvenient and not look nice. Which occasion is suitable to use personal air purifier? It is suitable to use it in bus,crowded elevators,office,smoking area,new decorated house or any place you need. What kind of People need it? It is suitable for all kind of people. Peole especially old people, children, pregnant women, sick, disabled people need it cause their immunity is weaker. Air purify can protect them from dust, pollen, viruses, bacteria, mites and others. Specifications : Charge source : DC 5V 150mA ; Charge time : about 4 hours ; Working current : about 35 mA ; Anion quantity : about 200-300W / cm3; Unit size : 57x47x22mm ; Net weight : approx. 40g ; Battery : 3.7V / 500mAH lithium battery ; Battery working time : about 30 hours ; Package includes : 1 x Personal air purifier, 1 x USB charge cable, 1 x String
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