3M Dust Remover blows the dirt away!

Who doesn't get crumbs and dust (and sometimes dog hair!) in their computer keyboard?I decided to give the 3M dust remover spray a try to see if I could get the dirt out easier than what I had been doing.I purchased and shared a 2 pack of 3.5oz cans with my mother.I put the little straw in to get ready to spray - that was easy.However, before I got the keyboard all fresh & clean the can of spray had become super cold in my hand.I'm sure it was a chemical reaction, but I had only been spraying in spurts for 10-15 seconds.What I noticed next was an AWFUL taste in my mouth.I made the mistake of breathing while I sprayed and not paying attention that the can contained bittering agents to help discourage inhalant abuse.While a good idea, it did not make me fond of the the product.It did it's job, but not without a few 'side effects'.