8 oz. Ultra Duster Industrial Strength Multi-Purpose Duster (3 Cans)

This is the brand of air duster I use most often since I typically find it for the best deal locally and it has pretty good force. These dusters work fine IF you use them according to the instructions.These (and most/all of these types of dusters) recommend being used in quick, short bursts. If you hold down the trigger, the can will quickly get cold and start to frost or ice over. The force will drop off immediately. This is the case with most of these dusters.I use these in quick short bursts with a few seconds pause between each one. After repeating this procedure you'll notice the can starts to get pretty cold. I then let it sit 10 to 30 seconds to warm back up before continuing. This prevents letting the can get too cold. If it gets too cold it will frost over and dramatically lose force or not work at all. It also takes longer to warm back up. If you're in a big hurry and purchase a multi-pack you can always swap cans as you go to speed things up, trading off for a warm can while the other cold/frosted cans warm back up.I've seen some reviewers comment about these dusters containing moisture. I've used a somewhere in the neighborhood of a dozen and a half cans of this brand over the past 2-3 years for dusting computer equipment. I have never seen any moisture unless I tilt the can at too much of an angle. ANY of these types of dusters will spray propellant out in liquid form if you turn the can at too much of an angle or hold it upside down. That's why the instructions specifically tell you to hold the can upright. Keep the can as straight up and down as you can. If you're overly concerned about moisture simply turn your computer or electronics devices off when you dust them and keep them off for a few minutes after dusting before you plug them back in and power them on. The only moisture I've seen from these cans occurs because I've not been paying attention and foolishly have the can sideways, nearly inverted etc. Even on these rare occasions of user error what does come out disappears almost instantly.PROS:+ Good Value+ Good force+ These 10 Oz cans seem to last me much longer than other cans I've used+ No CFCs that can harm the Ozone layer+ Contains a bitterant agent that supposedly makes this stuff taste so nasty people won't want to huff or deliberately inhale it.CONS:These cans do tend to get cold and frost over more quickly than others I've used but with all things considered it's not enough of a difference to make me buy other brands.

My daughter used this for the first time to clean out her computer. Minutes later, I opened her door to find her passed out on the floor, totally unresponsive! I finally got her to respond to me and she was totally blank as to what had happened. She didn't remember anything except attempting to clean her computer and a funny smell.If I hadn't found her, she very possibly could have died!!!!Do not use this product; it is highly dangerous!

I tried this on a sticky spacebar on a laptop. A lot of liquid kept spraying out and the can became extremely cold. I eventually got the can to puff out some air, though not very forcefully. Big deal. Don't buy this worthless product.

s full of moisture and damaged my laptop. This product should be avoided at all costs if you value your electronics. There was more water in this can than in a fire hose. Stay away......