Air compressor accessories work with air compressors to protect against wear and contaminants, control air pressure and flow, and provide air storage. Air compressor oil lubricates moving compressor parts to reduce friction. Air and water aftercoolers remove water and oil that can damage compressed air systems. Compressor air filters help ensure that compressors deliver clean, dry air. Compressor valves control air pressure and flow. Covers help shield air compressors from dust, debris, and water. Parts kits include components for starting up and maintaining compressors. Portable air tanks can be carried between locations to supply air. Stationary air tanks provide a fixed location for delivering and storing air. Mufflers and silencers dampen compressor noise.