The General Info

All About Needs.

Five Factors to Consider Before Buying an Air Compressor

An air compressor can work wonders in the garage and workshop. They will come into the picture and consideration when there is an electrical and construction project to take up. Therefore, it is vital to choose a suitable one to be more efficient in the workplace. One can consider a few factors while deciding on the right one, which includes the following:

Source of power

Electric ones can be easily portable, but finding a plug point can be an issue. One does not have a choice but choose an electric one when some activity is happening indoors. This is because a gas one will emit fumes. Nevertheless, the gas one is more efficient than an electric one. The voltage required is determined by the power that the compressor will need. 2HP engines will require a power outlet of 220-240V, while a regular household compressor will require only 110-120V.

Piston or Portable

Piston ones have a functioning motor that is involved in promoting air pressure during the depletion process. Therefore, the increase in air pressure corresponds to the rise in air usage. Air compression in a piston one requires high maintenance levels. It is best suited for commercial and industrial applications than menial work.

Portable ones carry out the function of a piston one without the use of a tank. Portable compressors deliver constant air pressure levels for an extended period, making them suitable for household applications, like pipes, pumps and other household appliances.

A piston one is costlier than a portable one, primarily because the piston one comes with a tank and a handheld portable.

Single-Stage or Two-Stage Pistons

Air compressors come with two types of pistons: single-stage and two-stage pumps. Single-stage air compressors suck and compress air to the desired pressure through the action of a single-stage piston. 150 PSI is the maximum pressure that a single-stage piston can create. Single-stage piston air compressors require more CFM rating than a two-stage air compressor.

A two-stage one comes with two pistons doing the work of a single piston in a single-stage air compressor. However, the working of the two-stage is slightly different as the process does not end with compression. Instead, the pistons compress the air, let it cool and compress it again. Two-stage ones are more efficient as the air is cooled down while compressing, which increases its density. Two-stage ones use their air pressure without losing it at any time. These can reach a maximum pressure of 200 PSI.


If noise is an issue, choosing an oil lubricated one is prudent than an oil-free one. Oil-free ones do not require a flat space for the oil to lubricate the machine. Oil lubricant ones are more efficient than oil-free air compressors.

Thermal Protection

Thermal protection is offered in air compressors as a switch that turns off the motor when it overheats. Given the investment made, customers must choose one that offers a thermal protection switch.