28%
Oxygen is most commonly delivered to the patient via a nasal cannula or mask attached to the tubing.
There are three sizes of B-VM's. The first (250ml) delivers 205ml of oxygen. The second (500ml) delivers 350ml. The third (1600ml) delivers 1000ml/1L.
Oxygen
Oxygen can be administered by nasal cannula, mask, and tent.
Your second question was: "can you overdose on oxygen wearing an oxygen mask?" The answer to that is no. Oxygen masks - as used by divers, fighter pilots and sometimes hospital patients - always offer a mix of oxygen and nitrogen so that oxygen poisoning cannot occur. However, if you were to put on a mask that makes you inhale only pure oxygen, it would after a little while start to poison your central nervous system. As to 'why your friend died': I have no idea.
Oxygen is most commonly delivered to the patient via a nasal cannula or mask attached to the tubing.
Why would you need to do that anyway? If you need the concentrated O2 that a mask provides, then a nasal cannula is not affective.
8-12 liters per minute. Less than 6 will give less percent oxygen than room air is (21%). More than 12 will not increase the percent oxygen received by the patient any higher than what they are receiving at 12 liters per minute.
30%
50%
Convert oxygen litter/minute to percnt
Oxygen
There are three sizes of B-VM's. The first (250ml) delivers 205ml of oxygen. The second (500ml) delivers 350ml. The third (1600ml) delivers 1000ml/1L.
Depending on the severity of the poisoning, 100% oxygen may be given with a tight fitting mask as soon as it is available.
How to use the oxygen mask on potty racers 3.4
The first oxygen mask was invented by a gentleman by the name of Lewis Haslett in 1847. The device protected the lungs and was actually more like a gas mask at that time.
Clothes oxygen mask