In breathing and anesthesia circuits, the heat difference between the humid air, circulating inside the tubing and outer room temparature can cause condensation and liquid build up and the water trap is the component that stops this fluids passage to the ventilator or to the patient. It has a liquid collection chamber on the lower section and this can be removed for emptying and reattached afterwards to resume the function. The valve mechanism inside the water trap seals itself when the collection chamber is removed. This allows the breathing or anesthesia circuit to keep functioning without allowing contamination, air leak or pressure drop.
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