Mike Be careful with an air compressor. If it is humid you can have moisture in the air.We had auto dump valves on the compressors at work along with air chillers and final filters.Moisture is NOT a good thing in electronics.Canned air is a propellant gas and is moisture free.(Used to be Freon before the Eco-Nazies made up stories about the Ozone holes,which by the way open and close on their own.A naturaly occuringphenonomen totaly unrelated to Freon)

Charlie