For commercial and contractor purposes, the SCFM of the air compressor has to meet or exceed the rating of the tools you plan to use. The simple calculation for this is to multiply the highest SCFM rated tool you will use by 1.5.AC Compressor, Condenser, Evaporator and More A/C Parts at
Brand Specific Considerations Once you have decided on the type and size of air compressor you need, you should consider the brand you want to purchase. To get the best performance and longest usage, think of factors such as these: How long has the company been in business?Air compressor deals
The tank size is generally limited to to 30 gallons or less. Portable air compressors may not be sufficient to power multiple pneumatic tools for an extended period of time, but they are less expensive and work well for home use and situations where the compressor will be needed in more than location on a regular basis.
If something goes wrong, you might be able to get the repairs done locally if you purchased a machine.
Each type is designed to provide a specific advantage. Which type you need will depend on factors such as your usage frequency and available downtime for maintenance. The maximum required psi for your projects will also play a factor in whether you need a single or two stage air compressor.