Bests & Worsts Reviews from Amazon

So, I went to blow out my PC and found one of the cans was substantially lighter than the other two. I already had a good idea why, but squeezed the trigger to be sure. As I suspected, the can was already empty. The only reason I gave it two stars is because the two that did work, worked as expected. Quite disappointed... * After leaving the 2 star review and contacting seller to let them know I was disappointed to find a dead can in my shipment, they apologized and sent me another order free of charge. All three cans worked in the replacement order, I'm pleased.