Pure 100% Oxygen is bad to breathe?
958887
Lavender gave you the key information you need, i.e., too much oxygen damages the body. Probably the best-known example of this is blindness in prematurely born infants due to breathing pure oxygen for extended periods (which is sometimes necessary to keep them alive). There are probably medical techniques available today to minimize this problem, but it has been a serious issue in past years (20 years ago in one example I am familiar with).\n\nHere is a bit more information about breathing pure oxygen, and some clarification of the comments from others.\n\nYou can breathe pure oxygen for short periods in order to recover from lack of oxygen (athletes do it, as do firemen who have inhaled smoke, for example).\n\nThe air we breathe at sea level is at a pressure of 14.7 psi, and 21% of it is oxygen. (78% is nitrogen, and most of the other 1% is argon.) If you take 21% of 14.7psi, you'll see that we are breathing oxygen at a pressure of about 3 psi.\n\nPilots and astronauts can breathe pure oxygen, but as Lavender points out, they breathe oxygen at a pressure lower than sea level air pressure. If their oxygen is delivered to them at 3 psi, then it is equivalent to the oxygen in our air at sea level. (And incidentally, the air we breathe is not much changed at elevations up to 5,000 or 10,000 feet. As a rule of thumb, you can notice the difference in air pressure (the difference in the availability of oxygen) when you get close to 10,000 feet of elevation. At 18,000 feet, the air pressure is about 50% of that at sea level. And after another 18,000 feet, the pressure at 36,000 feet is cut in half again, so it is about 25% of the sea level pressure.)
411888
Only using 25% in normal circumstances allows increased uptake from the same blood flow if required.  This further removal from the haemoglobin being easily achieved with little drop in PO2 as it is on the steep  part of the dissociation curve.  "An exercising muscle can extract virtually all the oxygen from its blood supply."\nAlso agree with above answer that otherwise, if you missed a single breath, blood with no oxygen would enter the arteries.
196746
It's better to breathe through your mouth.  Your mouth is bigger allowing you to get more oxygen.
345307
Carbon oxide can be bad for lungs, can cause dizzines, and unconsciousness.\n\n...
551286
oxygen is made by distilling liquid air. liquid air is regular air cooled to about -200 degrees.  it becomes a liquid.\n\nthe oxygen doesnt need cleaning,  the distillation process removes any impurities.\n\noxygen is put into the cylinders by a machine similar to a super heavyduty air compressor.  the oxygen in a full cylinder is at about 2000 psi.
205486
If you're cleaning with bleach, and you breathe in a little bit, it's not great, but won't kill you.  But remember to get fresh air fairly often.  Take a break, go into the other room, breathe a few fresh breathes, then come back.\n\nAlso, never mix ammonia and bleach.  The fumes from that are lethal!
427267
are you talking about huffing?? or a work related inhalation? I would say you question deserves clarity if you want a good answer.  The short and easy answer is that any time the amount of oxygen delivered to your body is depleted there will be damage.  The more severe the lack of oxygen the more severe the damage.  Your bodys cells, most specifically the ones in your brain require oxygen to run correctly and efficiently, when they do not get it they will become damaged and often times die.  Your body will do its best to route the oxygen that you do have to those areas that are most critical for function first.  If you are talking about huffing, dont' do it man, that headache you get about an hour or two after is telling you something... that you are hurting your brain.  If you are talking about a work hazaard then that headache at the end of the day is telling you something.  If it is work related then push your boss for some increased ventilation.  There are OSHA requirements for that.
557949
oxygen...almost everywhere, anyway.
1128009
I served in the USAF from 1994-1998. I wasn't a pilot, I was a poor little enlisted  scrub. But, I know that that the AF suggests weight training, with cardio, endurance activities. Now, I think your question revelovles around the positive pressure breathing technique? That would be rapid inhalation, followed by rapid exhalation while tensing all the major muscle groups. Now, most pilots do the 1-2 hour of pre-breathing of pure 100% oxygen. Personally, I think you should look into yoga.
198755
lack of oxygen causes this
1112892
Liquid oxygen is oxygen in liquid form. It is used in hospitals as a mix gas by anesthesiologists. The pure oxygen is mixed with other gases that put you to sleep because without oxygen you would die. It is liquid because they compress it (cool it) until it changes into a liquid state. It makes it possible to keep more oxygen in a smaller container. That means less trips for more o2. Some think it is used more for cryogenic storage but that is usually not the case at hospitals. It is highly flammable and not very safe for use as a storage medium. Liquid nitrogen is usually used for that. On a side note, the bottle you saw it stored in is just like a thermos you would use for coffee or a cold beverage. It is basically a big insulated bottle with a lot of plumbing in it.
821089
No.  If you did this, you run a risk of stopping breathing.  Please don't do this.
1109852
On June 3, the bodies of two college students were found in a giant helium balloon in Florida. The week before, a 10-year-old in New Jersey collapsed at a birthday party after sucking helium from a balloon. Is helium really that dangerous?\n\nIt can be. Breathing in pure helium deprives the body of oxygen, as if you were holding your breath. If you couldn't breathe at all, you'd start to die in minutes—as soon as your body exhausted the supply of oxygen stored in the blood. But helium speeds up this process: When the gas fills your lungs, it creates a diffusion gradient that washes out the oxygen. In other words, each breath of helium you take sucks more oxygen out of your system. After inhaling helium, the body's oxygen level can plummet to a hazardous level in a matter of seconds.\n\nYou don't have to worry about fatal asphyxiation if you're sucking from a helium balloon at a party. At worst you'll keep going until you get lightheaded and pass out—at which point you'll stop inhaling helium and your body's oxygen levels will return to normal. Of more concern is the possibility that you'll hurt yourself when you fall down. (The boy in New Jersey bumped his head and needed three stitches.) It's far more dangerous to suck helium out of a pressurized tank: If the gas comes in too quickly, your lungs might burst and hemorrhage.\n\nOf course you're putting yourself in grave danger anytime you climb inside a giant helium balloon. The college kids in Florida weren't the first to attempt this stunt. In 2002, a case report from a Japanese medical journal described a similar episode: A drunken adolescent poked his head into an advertising balloon and asphyxiated. Several authors have also reported cases of suicide by helium inhalation. \n\nDeath by helium still seems to be quite rare. U.S. Poison Control Centers reported only two fatalities between 2000 and 2004. There's still an outcry from concerned parents whenever helium inhalation makes its way into popular culture. Federal Express had to pull a commercial that depicted the munchkins from The Wizard of Oz sucking balloons to keep their voices at a high pitch. Geoffrey, the Toys "R" Us giraffe, got a slap on the hoof for doing the same. \n\nAt the same time, doctors use a mixture of helium and oxygen (called "heliox") to help patients with upper-respiratory blockages. The treatment works because the helium is a very light gas, and it's easier to push it through an obstructed airway. (We get funny voices when we inhale helium because the lighter gas changes the resonant frequencies of our vocal tract.*)
491213
Those 'oxygen enriched water' machines a scam. They are a way to take money off stupid people.\n\nNo, the human body can not absorb the oxygen present in water. Well, that's not quite true. You could absorb the oxygen in water if you breathed it in. Then you would drown. But if you are just drinking the water or bathing in it you can never absorb the oxygen in it.
526602
cuts off there oxygen supply
182733
at a rate of 91% on room air you need to be started on lo oxygen via nasal canula or non rebreather mask start the flow at 1 or 2 on the delivery dial dont go much higher as the lungs are now responding to the carbon dioxide levels not the oxygen levels. yes it is smart to have an o2 saturation meter
1177658
breathing is just lungs.  respiration has to do with the blood getting oxygen.\n\nand there are 2 types of respiration too.  one with chemistry.  not sure about that one.