1L-9L Adjustable Flow:Adjust oxygen flow from 1L/min to 8L/min, with 93% concentration at 1-2L/min

Continuous Flow Output:stable oxygen supply. Timer allows 0.5-4 h operation or auto shut-off after 72 hours without a timer

Simple Operation Panel Design: Features an LED display and touch controls for easy use, especially for seniors

Small Household Machine:Machine weight:5.2KG/11.5lbs,Machine size:280 *200*312mm/11.0*7.9*12.3 in,Easy to store and move

Quiet Operation ≤43dB:Operates quietly for sleep, ideal for students, seniors and office workers