Features:
Can continuously work *4 hours
Can definite time, using time is up to you
Fully filtrate harmful substances in the air and refresh the air with rich oxygen
Environmentally and health friendly
Low noise ,mute motor, physical oxygen generation
Convenient earphone breathing apparatus
Safely broad-spectrum, oxygen concentration satisfying varied demands
Portable and light
High stability and consistency , long lifetime
Completely physical rich oxygen supply. much safer, more environmental and health friendly
Intelligent Control: Far infrared remote control/electronic flow meter control.
Advanced function:Oxygen therapy/Nebulizer/Negative Ion
Input power: *0W
Voltage: AC**0V / **0V
Rated current : 0.8A
Oxygen concentrating: *0%~*5%
Outflow: 1~5L/min
Oxygen identification: Tasteless, colorless, combustion-supporting gas
Working noise: below *5dB
Product size: **5mm(L)***8mm(W)***3mm(H)
Outflow:  **5L/M  
Color:  white,green
Oxygen purity:  *0%**0%  
N.W.:5.5kgs
Item Size:**5***8***3mm
Pressure:  0.***0.*4MPa