2 Piece USB Portable Air Purifier, Personal Hanging Necklace with Negative Ionizer Air Freshener No Radiation - Black & White

Air Volume: 50m³/h
Power (W): 5w
Voltage (V): 5V
Certification: None
Style: Air Purifier
Application area: <10㎡
Installation: Portable
Formaldehyde Removal Rate: 99.90%
Type: Negative Ion
Power Source: ELECTRICAL
Benzene Removal Rate: 99%
Noise: ≤10dB
Anion Density: 1000000pcs/m³
Application: 3-8m³
Function: Oxygenation
Wind Speed: Standard
Oxygen Supply: 1.1L/min(included)-3L/min(included)
Usage Condition: Household
Power Supply: Battery Powered