We need to understand how an air respirator works. Air ventilators rely primarily on compressed air to provide the oxygen that patients need to breathe. In normal use, when the user's breathing causes the pressure in the air tank to drop, the air respirator automatically replenishes the compressed air to maintain the pressure in the tank at a relatively constant range.
When the pressure of an air respirator falls below how much, it can no longer be used? Generally speaking, an air respirator should be taken out of service when its pressure falls below 500 psi (pounds-square inch or pounds-square pound). This is because too low a pressure may cause the air tank to be unable to provide enough oxygen to meet the user's needs, which can trigger the risk of hypoxia.
It should be noted here that different models and brands of air breathing apparatus may have different pressure requirements. Therefore, in actual use, we should not only pay attention to the overall pressure of the air breathing apparatus, but also pay attention to the instructions and safety guidelines provided by the manufacturer. These guidelines usually detail the limitations and precautions for use of the air respirator under various pressure conditions.
In addition, regular maintenance and inspections are essential to ensure the proper functioning and longevity of an air respirator. This includes cleaning and lubricating mechanical parts, checking the working condition of air pressure gauges and valves, and so on. Through regular maintenance, potential problems can be detected and fixed early, thus avoiding emergencies caused by equipment failure.
In short, as surgeons, we must always be aware of the pressure status of our air breathing apparatus to ensure that it is being used within its normal range. When the pressure is near or below 500 psi, stop using it immediately and seek professional help. At the same time, to ensure that the equipment is always in good condition, we should also conduct regular maintenance and inspection. Through these measures, we can maximize the safety and health of users.