The price is high pressure air from the first P International Machinery Co., Ltd. is a professional sales and quality are funded through the National 3C inspection Inspection Bureau, and SGS certification, CE certification, quality and safety have great protection. Absolute advantage in price, fast delivery. No matter which brand of high pressure air, we need to protect two aspects: First, the pressure, the second is dust. For pressure, often using a pressure relief valve, it is a relief valve, when the use of high pressure air pressure exceeds the pressure relief valve setting, the relief valve will automatically open to relieve excess pressure, thereby protection of high pressure air. For dust, often using a filter. It is based on the use of different site, often using different filtering accuracy of filter cartridges, filter different methods have different maintenance and service life, in the order you need to ask. In some special occasions, but also the need for special protection: For example, when used in a sealed environment, pay attention to ventilation; when the ambient temperature (intake air temperature is relatively high), but also to pay attention to ventilation, or choose to allow into the wind high temperature high pressure air (eg there is a ring-shaped drum high pressure air, allowing the inlet air temperature up to 130 °); for some brands of high pressure air, may also have their own recommendations, before buying, it is best to compare in detail understanding.