Portable Air Filter Necklace Car Negative Ion Odor Remover(White)

1. Effectively purify second-hand smoke, smog, and formaldehyde
2. Two levels of negative ion concentration adjustment: 3000W/cubic centimeter and 12000W/cubic centimeter
3. The dual negative ion emitters have no filter to better purify the air, 0 consumables are more environmentally friendly, and the long-lasting purification is more effective
4. Built-in 250mAh lithium battery, the working time can reach 24 hours when fully charged
5. Intelligent AI chip, intelligent and fast purification in 15 seconds
6. No filter, no radiation, no consumables, safe to use for pregnant and infants
7. 5 decibels silent operation, quietly guarding your breathing space

parameter:
1. Working voltage: DC 3.7V
2. Power: less than 0.2W
3. Battery capacity: 250mAh
4. Material: ABS
5. Charging time: 2 hours
6. Charging method: USB interface
7. Battery life: 24 hours
8. Product size: 52 x 21mm
9. Weight: 48 grams