We are now renting helium cylinders again!
We currently are renting only one size of helium cylinder and it is a steel 80 cubic foot cylinder. Each tank comes with a valve for filling latex or foil balloons or one that will fill both as requested. The rental price is $135.00 for a one week period for the 80 cubic foot cylinder. The 80 cubic foot cylinders weigh just short of 50 pounds and stand about 36" tall. The cylinders should fill somewhere between 125 and 150 11" latex balloons. Mylar balloon vary greatly. In the future we may start renting the 60 cubic foot cylinders again. We recommend that the helium cylinders are tied down when transported in a vehicle and preferably should be transported upright in an open vehicle such as a pickup. Never place a helium cylinder on the seat in your vehicle. When the helium cylinders are used in a public place it is recommended that they are secured so they do not fall. The tanks must be used upright.
Latex balloons are available in a variety of colors for 30 cents with a tank rental and curling ribbon is included.
We charge a $200 deposit on the 80 cubic foot cylinder. If you are a regular user of helium you are welcome to keep the cylinder and bring it back to exchange for a full cylinder. The fill valve however must be returned if you keep the cylinder. Valves are available from multiple sources online. We recommend a quality valve from Conwin or Western not a cheap valve if you plan regular use.
To cover the ceiling of an average-sized 12' by 12' room in the US with standard 11-inch balloons, you would require approximately 135 balloons.
To fill an average-sized room in the US with standard 11-inch balloons, you would require approximately 450 air filled balloons accounting for an average amount of furniture. This calculation is based on the room’s volume of 144 square feet and the volume of each balloon, assuming a spherical shape, at 0.30 cubic feet.