Using these balloons is super easy. You can fill them with air using a regular balloon pump, with helium from a helium tank, or even with water for a fun twist. For helium - filled balloons, make sure to inflate them just before your event starts to get the most float time. Air - filled balloons will last longer but won't float. When it comes to storage, keep them in a cool, dry place away from sharp objects. After your event, deflate the balloons carefully and store them flat for future use. Avoid over - inflating the balloons as it may cause them to burst. Also, don't expose them to direct sunlight or extreme temperatures for too long as it can affect their quality.