Portable Air Purifier PM2.5 Formaldehyde Removal Necklace Mini Air Freshener Wearable Air Cleaner USB Rechargeable Household Negative Ion Generator for Adults Kids Black

Features:
[Compact Structure] Mini size, easy to carry and store, enjoying fresh air and breathing freely anywhere anytime.
[High Concentration of Negative Oxygen Ion] According to the test, 8,000,000 negative oxygen ions can be released per m³, and no ozone release is detected.
[High Power] 15-second rapid and effective air purification, effectively removing PM2.5, formaldehyde, dust, smoke and odor.
[Silent Purification] Less than 30dB, ultra quiet, so that it will not disturb your sleep, work and study.
[Adjustable Lanyard] Necklace design, free your hands and convenient to hang it on your neck.
[USB Charging] Wireless use mode, more convenient for carrying and use.
[Wide Application] Filtering harmful substances in the air, this mini negative ion generator can be used in classroom, office, metro, outdoors and any other places with poor air quality.