2×Battery 3L Portable Continuous Flow Oxygen Concentrators Home Upper limit for Filter-frequency 20kHz

Upper limit for Filter-frequency 20kHz

The Splint is built from a thin

Humidifier Level

【Widely Range of Application】The backup battery power supply is powerful enough to meet different kinds of electricity demands usage for emergency

2×Battery 3L Portable Continuous Flow Oxygen Concentrators Home Upper limit for Filter-frequency 20kHzOxygen Concentrators Features: Multi Purpose: Awesome for home, car, travel, and work, Including 2* battery. Charge 4 hours, Work Time for 2. 5 hours. 2 batteries work for 5 hours Low Noise: less than 45dB, night use will not affect sleep, It works with or without water, no need to refill at night. Portable and light: Size: 9*4. 3*6. 6 inch, weight 4. 4Ibs, with carrying Bag is portable Energy efficient, Economical Consumption: Power Consumption is