Pick up your oxygen concentrator (Venus 5) just a finger

You can pick up your oxygen concentrator just a finger.

Technical Specification 
Oxygen Concentration : 96%~90% at all flow rates,   
                                        Based on atmospheric of 14.7psia(101 kPa) at 21℃ 
Power requirements : AC adaptor : 100~240V AC (±10%),50/60Hz in,16.8V DC ,6A out 
DC adaptor : 12.0~16.8V DC in,16.8V DC out 
Sound Level : 42dBA at setting 2 and 15 BPM
(when measured at 1 m from front of device)
Alarm type : No breath, low oxygen concentration, high breath rate, technical fault,
                     low battery, no flow ,depleted battery, external power failure 
Outlet pressure : 8.5±0.5 psi 
Operation Temp. /Humidity : 5~35℃/ 5~90%RH
Storage Temp. /Humidity : -20~70℃/ 5~95%RH
Dimension(mm) 115 (L) x 158 (W) x 255 (H) mm
Weight 2.2 kg ( with internal battery)

	Setting / Battery Duration
Breath per minute	Setting 1 /   300min	Setting 2 /   230 min	Setting 3 /    195 min	Setting 4 /    140 min	Setting 5 /   110 min
15	11	22	33	44	55
20	11	22	33	44	50
25	11	22	33	40	40
30	11	22	33	33	33
35	11	22	30	30	30
40	11	22	25	25	25