Using these balloons is a breeze. First, decide if you want to use air or helium to inflate them. If you're using a pump for air, just attach it to the balloon's opening and start pumping. For helium, you can use a helium tank and inflate them easily. When inflating with helium, keep in mind that they'll float for about 12 - 18 hours. These balloons are biodegradable, so they're great for the environment. But don't over - inflate them, as this could cause them to burst. After your party, you can simply deflate the balloons and dispose of them properly. If you want to reuse them, store them in a cool, dry place to keep them in good condition.