(Image credit: Future / Amazon) An air blower, or air duster, is an often-forgotten part of any PC maintenance toolkit. Sure, you can buy cans of compressed air, but they run out, and then you have to buy more. You don't need to do that anymore. Thanks to Amazon Prime Day , there are some serious bargains to be had on portable, hand-held air blowers that you can use to keep your desk clean and your fans clear. I've used an air blower for years to do just that, to clean underneath the keys in my keyboard and to clear out the dust from hard-to-reach places, especially in my PC case. ● Check out these air blower deals at Amazon We're in the last stretch of the Prime Day week sales, however. These discounts on air dusters won't be around for much longer, and you might miss out on a bargain if you're not quick about it. To help you, we've put together a list of some of the best (and cheapest) air dusters on the market right now. Pick one up, blast that grime, and get your desk ready for a summer of gaming.…