BIENDAY Continus-Home use 1-7L/M &Bag Oxygen Machine Portable Tube&Oxygen Generator-𝗐𝗂th 2 in 1 equipment con full Accessor 93% concentration-105

35%-90%(Adjustable by flow) Noise:≤48dB(A) Net weight:6kg Outline size: 305x180x310mm 2in1You may also like BIENDAY 𝒉𝒆𝒂𝒍𝒕𝒉care 1-6L/M&Portable Oxygen Generator-Tube 93% Out Machine for Travel Use&C𝗈𝗆𝖾 𝗐𝗂th machine 6𝑙𝑏𝑠 Accessories 06.