Bests & Worsts Reviews from Amazon

I was worried about purchasing this tank as I saw several negative reviews about the tank being empty or not having much helium in it... or the balloons losing helium quickly and sinking. I didn't experience any of these issues. At first I couldn't figure out how to actually get the helium out. I turned the nozzle all the way counter-clockwise and thought I was supposed to pinch the connector to let the helium out. Instead you actually have to push down on the black tip firmly. This thing filled a large "walker" balloon that was 4 feet tall, and then it filled 10 medium sized mylar balloons and about 15-20 normal sized latex balloons. Overall it was enough to handle the majority of the balloons needed for the party before it ran out. My only advice is to make sure you really put the balloon on the tip well and try to hold your fingers around the seal so that as little helium escapes as possible. This way you maximize how much you can fill up. I can see someone using this incorrectly and wasting a lot of helium.