Air Duster Can Compressed Air Spray Can Dust Cleaner PC, Keyboard, Electronic Devices & Car Cleaning Protect, 2 x 400ml, Packaging May Vary

They are effective for a few seconds of use but then they get too cold to touch and the air doesnt come out properly until you wait for them to warm up again. Other than that, gets rid of dust effectively. Still seems to have lots of air left and very powerful. Good value.

Very pleased with this twin-pack of air duster cans. I used them to clear debris from my laptop keyboard, various printers and the inside of my tower PC and they did the job very well. The spray was strong enough to dislodge dust and crumbs without me having to struggle and there's plenty in both cans so I feel I've got great value. One thing to note: it's quite cold when it sprays so you need to keep it moving across the area you're cleaning, which I did and it worked without fuss. The nozzles are decent and I didn't experience any of the issues others mention about them clogging or misaligning. If you're after a reliable budget air-duster to maintain your tech gear then this set is definitely worth considering.

Not a particularly strong flow of air

Best quality

Other buyers have pointed towards a poor air pressure. I thought that at first but then realised you have to press down really quite firmly to get the full spray effect. This becomes evident when you see a mist being blasted from the straw, which settles as a freezing mist over the keyboard. It does the job but seems a bit messy. Maybe I should have read the label more carefully as it isn't a can of compressed air so much as liquid petroleum - which can leave a residue that needs cleaning off.