Density of negative-ion more than 10, 000, 000 unit/cm3 (equal to forest level)
20 times higher than traditional oxygen bar
Nice effect of smoke cleaning, germs killing and higher efficiency for pollution air cleaning
Large container for perfume (4mL), doubled to traditional banana oxygen bar
Convenient and visible for perfume input
Even during driving, hold product with 2 fingers and use one other finger to move adjusting stem
Banana oxygen bar need 2 hands to operate, one hand to hold body, one hand to turn switch
Easier to control perfume volume
Avoid perfume over flow for invisible operation
Convenient to adjust perfume out emitting