AIRPRO MASK Air Purifier Portable Wearable Air Purifiler Respirator with Replaceable Activated Carbon H13 HEPA Filter,Rechargeable Micro OTG Several adaptor tips

Several adaptor tips

1A-Dual USB output 5V=2

25m-Speaker 10mm-Speaker sensitivity 95dB-Mic sensitivity -48+3dB-Frequency range 20Hz-20KHz-Impedance 16ohms-Port Type-C

Backward compatible with USB 2

AIRPRO MASK Air Purifier Portable Wearable Air Purifiler Respirator with Replaceable Activated Carbon H13 HEPA Filter,Rechargeable Micro OTG Several adaptor tipsAir Purifier With HEPA Filter for Filtration effect reaches 99. 97%. Achieve double protection, It has better filtering effect and better protection performance than negative ion purifier. HEPA filter Filtaration captures 99. 97%of allergens: POLLEN Dust, Pet Dander,Odors, etc. Supplied fresh air respirator system is equipped with portable power sources mainly overcome the problems of big air intaking resistance, difficulties in breathing, and so on.