Best Can of Compressed Air for a Reasonable price?

[RMaxQ]

Im in the UK and need a can of compressed air to remove the dust from my pc, I don't want to pay more that £7, whats the best can to use, or you would recommend? I know all cans are the same but I don't feel comfortable buying a stationary can for example XD Thanks!

 

[lp231]

I use Falcon Dust Off and it's pretty good.
http://www.scan.co.uk/products/falcon-gaming-gear-dust-off-compressed-air-duster-300ml

http://www.amazon.co.uk/Falcon-Dust-Off-XL-4-Pack/dp/B0047334MC

 

[sora]

http://www.amazon.co.uk/Dust-Off-18010-DFG1052X-Gaming-Duster/dp/B002QQZOI4/
Three extra pounds but it should work pretty well.