Choosing an air compressor may sound like a pretty easy task to those who do not really understand. But if a customer is not careful in their selection a salesperson can make quite a large commission selling you a much bigger unit than what is actually needed. The flip side of that of course, is that you may get home only to realize that the air compressor you purchased is not big enough to meet your needs. This can be eliminated if you do a small amount of research before going to the store. Actually, purchasing one online can be less expensive, but you have to know what you want before you begin shopping.
The first thing to think about is what kinds of tools you will be using with the air compressor. These useful machines are rated by how many cubic feet per minute (CFM) of air it can supply. The more air it supplies, the greater the pressure. Different pieces of equipment need varying amounts of pressure to work properly. As an example, a sprayer will require much more pressure to work effectively than a staple gun will. Check the tools you will be using with the air compressor to make sure it can handle what is needed.
Another thing to think about is the voltage that will be needed to run the unit. Most of the time, they will only use a standard 110 plug. But it is a good idea to purchase a unit that has a dual feature and can use either a 110 plug or a 220 plug. This can be a great advantage so that you can still work no matter which one is available at the time. Don't forget that there are also gasoline powered machines. This can be a very handy feature if you are completing a job in a place where there is no electricity. However, this also means that you have to carry gasoline with you all the time.
You should also consider the horsepower of the unit. It is not nearly as important as the salesperson may try to make you think. The horsepower does not make the machine produce more pressure. It is important that it will run consistently. Many will advertise a certain peak horsepower, but this is at startup. That is not what is important; you want a consistent running horsepower to sustain the air compressor so that it can continue to provide air pressure consistently.