The color indicators on the instruments were not working properly, allowing patients to inhale high levels of dangerous undetected, and a valve in the apparatus tended to stick and cause rebreathing.
12.
There's a suave green shaver, with a ceramic razor blade; plastic corneal implants that resemble a startling set of jewels, and a scuba rebreathing apparatus that transforms divers into fish.
13.
But if you put a plastic bag over your head, you'll die from rebreathing your own exhalations quite quickly ( Hint : Don't try this at home folks ! ).
14.
Typically, a frogman with closed circuit oxygen rebreathing equipment will stay within a depth limit of with limited deeper excursions to a maximum of because of the risk of seizure due to acute oxygen toxicity.
15.
In some devices certain means were provided for the adsorption of carbon dioxide in exhaled air and the rebreathing of the same air many times; in other cases valves were provided for exhalation of used air.
16.
Continued rebreathing of the same gas will deplete the oxygen to a level which will no longer support consciousness, and eventually life, so gas containing oxygen must be added to the breathing gas to maintain the required concentration of oxygen.
17.
In some instances, a partial rebreathing mask can be used, which is based on a simple mask, but featuring a reservoir bag, which increases the provided oxygen concentration to 40 70 % oxygen at 5 to 15 LPM.
18.
Some older forms of breathing attachment, such as the "'Magill "'attachment, require high fresh gas flows ( e . g . 7 litres / min ) to prevent the patient from rebreathing their own expired carbon dioxide.
19.
Gaffney's 15 years of experience in cardiac research and operation of equipment such as echocardiograms and rebreathing devices led to his being selected as a payload specialist aboard STS-40 Spacelab Life Sciences ( SLS 1 ), a mission which took place in June 1991.
20.
If these are very quiet, a rebreathing bag may be used-a plastic bag over the nose to intensify the horse's respiratory effort and hence the sounds . "'This procedure can be dangerous and should not be attempted by non-professionals . "'
