It is essential to note that an air compressor works by converting power from electricity or gasoline to potential energy which is stored in the form of pressurized air. One would need to note that an air compressor tends to be continuously subject air into a container up to a given pressure levels. The air compressor then shuts off the moment it reaches the given level of pressure. It would also be essential for one to note that once the compressed air has been collected, it is stored for future use. It would be essential for one to know the classification of air compressors as well. One would need a low-pressure air compressor depending on the use which tends to discharge pressure of 150 psi or below. In case one needs a medium air compressor, he or she would need to make sure that he or she purchase an air compressor that discharge pressure of 151 psi to about 1000 psi. The high pressure tend to discharge pressure above 1000 psi. One would also need to know that air compressors can be classified according to the principle of operation and design which makes them fall under turbo and rotary screw compressor.
Knowing where an air compressor is also essential. One would need to note that a gas cylinder needs an air compressor when supplying air to a submerged surface supplied diver. It has always been essential for one to make sure that he or she acquires the best air compressor for the intended job. In a situation an air compressor is needed for supplying air into offices and schools building pneumatic HVAC systems, one would need to make sure that he or she purchases the best air compressor. In a situation where one needs to fill tires with air, needs to compress air for largescale use or even needs to use a jackhammer, he or she would need to ensure that he or she gets it right in acquiring the right air compressor.
Noting that there are oil lubed and oil-less air compressors is also an essential prior to purchasing an air compressor. While the oil-less system is known to be more technically developed, it tends to be more expensive. One would also need to ascertain that the oil less air compressor offers cleaner air as compared to the oil lubed. The size of the cylinder and the pressure levels used determine the amount of compressed air. In a case where one feels that he or she may have a problem accessing electricity, he or she may need to make sure that he or she buys a gas or diesel powered compressor although it may be a bit noisy. One would also need to make sure that he or she checks the air leaks among other checks.