The compressor is the heart of any air conditioning or refrigeration system, so when it starts showing signs of not working correctly, technicians must act quickly in order to find out what is wrong.

After a great floor jack and a tool chest, getting the best air compressor is probably next on any home mechanic’s wish list.

Portable air compressors power a variety of air tools, including inflators for tires, finish nailers for carpentry projects, and impact wrenches for auto work. Unlike full-size air compressors, these ...