My current can of compressed "air" (some kind of fluorocarbon probably) is about to run out and I was just about to order another one. But they're like $25 and Chemicals Bad and Thinking of the Children and all that.
Just wondering what others do? Some kind of small electric compressor would possibly be ideal.
I also have a big garage compressor (which is old and rubbish but just won't die so I can legitimately tell Mrs MDF that we need a new one). I've never used this for "delicates" as it packs a bit of a wallop, and I worry about the level of moisture it spits out. But maybe a decent moisture filter for this would be okay?