Sell Medical Oxygen Cylinder Portable Oxygen 1200ML (pure oxygen tank) Oxygen best price

1200ML large capacity medical oxygen. Fresh and natural. Health and Environmental Protection. Portable oxygen supplement, multi-way available. Suitable for pregnant women, middle-aged and elderly people, families, outdoor travel, altitude sickness, high stress and other hypoxic people. Hypoxia in the second trimester of pregnancy. Elderly standing,High altitude travel hypoxia,Long-term mental workers. Method of use Step 1: Remove the respirator mask and remove the cap Step 2: Put the perforated side of the mask up Step 3: Put the mask over your mouth and nose, press the button for 1 to 2 seconds, inhale deeply while pressing, and exchange through your lungs for the best effect. Release the button, remove the mask, and exhale. Repeat the above steps until the symptoms relieve. Step 4: Cover the mask and bottle cap after use, in preparation for the next use! Products are in stock, if you encounter problems, please contact customer service processing! thank you so much !