Air compressors are widely used among American manufacturers, industries and are often valuable components in automotive functions. Air compressors are typically available as both gas and electrically powered devices. It usually costs quite a bit to operate the compressors effectively, and this can form a large part of a business's utility budget.

Air compressors are often the single most important source of energy; they are also one of the largest expenses, both in terms of purchase and maintenance costs. They are usually available in a horsepower of three-quarters or larger and can have air tanks with up to an 80-gallon tank. Makes, model and features of an air compressor will vary among brands and models.

The governing body over equipment such as air compressors is the American Society of Mechanical Engineers (ASME). An important safety component in all ASME certified air compressors is an air safety release valve. This valve allows air to escape if the tank pressure exceeds the maximum level as required by law. This prohibits accidents caused by excess pressure and the explosion of the compressor. Other safety measures include a cord that can be pulled to make sure the pressure is allowable and that the valves are not clogged or corrupted.

You should always choose an air compressor based on quality and protection; cost is important but should be a secondary factor for choosing an air compressor for your needs. The only way to guarantee your safety and the quality of workmanship is to purchase an air compressor that is certified by the American Society of Mechanical Engineers (ASME). These air compressors have undergone quality testing and will have a label attached to the unit. Not all air compressors will be ASME certified, although some states do not allow the sale of any compressor that has not been tested and certified by ASME.