Review of ECH Portable Oxy-gen Con-centrator O2 : ✅ Price comparison ✅ Customer reviews ✅ Product information: size , weight, battery life.
ECH Portable Oxy-gen Con-centrator O2 Concentrat_or Generat_or O2 Bar Machine, 1-6L/min Adjustable Machine for Home and Travel Use 110V
- Can run for 24 hours or by timer
- Great for home use or traveling
- Simple LCD menu
- Really quite
- Not a lot of reviews for the new version