It's an air duster for your keyboards etc. Works great but the can doesn't last long and you pay a high price for it. It's air......Blow dryer on cool setting works just as good.
The can of duster is fine. The problem is that the plastic straw doesn't fit properly. It's too fat and what happens is the the straw flies off when you try to blow off some dust off something. I had to use a straw from another product that's thinner. it fits in the hole better because it goes in deeper. That works just fine.