Necklace USB Mini Portable Negative Ionizer

Material: Environmental Protection
Color: blue + silver / white + silver / rose gold + silver
Rated Power: 5w
Negative ion concentration: 40 million pcs/cm³
Nominal noise: 33dB
Practical area: ≤50㎡
Oxygen production: 100 mg/hour
Aldehyde removal rate: ≥99.3%
Sterilization and deodorization: ≥99.9%
Battery capacity:230mAh
Battery life: About 28 hours
Charging time: About 1-2 hours
Ambient temperature (operating): -10 Celsius~ 40 Celsius (14 Fahrenheit ~ 104 Fahrenheit)
Ambient temperature (storage): -20 Celsius ~ 60 Celsius (-4 Fahrenheit ~ 140 Fahrenheit)

Features:

1. Negative ions effectively purify the air, remove PM2.5, dust, harmful substances, viruses, bacteria, etc.;
2. Especially suitable for children, the elderly, pregnant women, and those who are allergic to pollen and odor;
3. Effectively control bacteria and other infections around people, stay away from respiratory diseases, etc.;
4. One charge can be continuous for more than 20 hours;
5. Special protection for pregnant women and children who are susceptible to air infections;
6. Purify the surrounding environment anytime and anywhere;