Portable air compressors have their advantages when it comes to mobility. These types of compressors can be useful for inflating a football or your airbed on the beach. They are also suitable for bicycle and car tyres. But don't expect them to handle heavier jobs.
All-rounders have a slightly more power, you can tackle more advanced tasks such as cleaning or loading a nail gun when fitting panels.
Powerful compressors are relatively expensive, but they can handle tasks like using a wheel nut runner or a paint sprayer. And they can be used just about anywhere.
Oil-free compressors require little to no maintenance. They are perfect for delicate applications, as it's guaranteed not to contain any oil particles (unlike lubricated compressors).
With a tank of 30 litres or more, you'll be able to maintain pressure for longer periods without constantly triggering the compressor. But, for shorter tasks, a smaller tank may be all you need.
Make sure the air tools you plan to use with your compressor match up in terms of air volume. Each compressor and air tool comes with a specified volume of air, so check if your tools meet the requirements.
As a general rule, your compressor should have a specified air volume that's 120 percent of your tool's air volume requirement. And, conversely, your tool should require a maximum of 80 percent of your compressor's specified air volume.