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oxygen hood An oxygen hood is a plastic hood used for high flow oxygen therapy in infants. It surrounds the head and has an opening for the neck. A high flow rate is necessary to prevent carbon dioxide accumulation. Supplied gas must be warmed and humidified. [37] oxygen mask
Oxygen therapy often benefits patients by providing more oxygen to their lungs and consequently to their tissues. Typically, the treatment raises the amount of oxygen in the blood, decreases load on the heart, and facilitates breathing. It can ease symptoms such as cough and dried up secretions that occur in respiratory conditions.
Oxygen can be delivered to spontaneously breathing patients via nasal cannula, face mask, artificial airway, or by built-in breathing system demand mask or oxygen hood in a hyperbaric chamber. [49] [50] Delivery may be by continuous flow, by bag reservoir mask, on demand, or on pulse demand. [43]
Uses compressed oxygen. Uses an oxygen-generating solid. This involves a chemical reaction between potassium superoxide with exhaled water and carbon dioxide. A chlorate candle has to be struck to start the device. To reduce pressure buildup from use, a pressure-relief valve with saliva trap is included.
When the oxygen supply ends, the hood will begin deflating and must be removed to avoid suffocation. These devices represent a subgroup of smoke hoods called positive-pressure respirators , which prevent the ingress of smoke or toxic gases by maintaining a higher air pressure inside the mask than outside.
They may use a breathing hood, facepiece or mouthpiece and nose-clip as the user respiratory interface. Atmosphere-supplying apparatus may be rebreathers with a chemical or compressed gas oxygen supply, positive pressure demand apparatus, or constant flow apparatus using high pressure compressed air. Contamination of the breathing gas may be ...
A suicide bag, also known as an exit bag or hood, [1] [2] is part of a euthanasia device consisting of a large plastic bag with a drawcord used to die by suicide through inert gas asphyxiation. It is usually used in conjunction with a flow of an inert gas that is lighter or less dense than air, like helium or nitrogen .
For substances hazardous to the eyes, a respirator equipped with a full facepiece, helmet, or hood is recommended. Air-purifying respirators are not effective during firefighting, in oxygen-deficient atmosphere, or in an unknown atmosphere; in these situations a self-contained breathing apparatus is recommended instead. [57]
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