Air compressor is the power source, which is operated with disregard for its features, adjustments and required maintenance. There are many different types of standard air compressors: those with large or small capacities, portable or stationary compressors, and electric or gasoline powered compressors. These compressors have a wide range of capacities for air delivery. There are two basic types of compressors: those with air tanks and those that do not have air tanks. Those without air tanks are less expensive than the compressors with air tanks, and are designed primarily for blowing air and inflating tubes and tires. Compressors with air tanks are more powerful and, depending upon the model, will operate any air tool or accessory.