This depends on the volume & quality of the balloon and the air temperate. As a guide the average is 8 – 12 hrs at normal room temperature for a 28cm latex balloon filled 28cm from top to bottom. Latex Balloons can also be sealed with a product called Ultra Hi-Float that can make them last at least a further 3-4 days if handled correctly. We sell this product for $27.00 in a dispenser & will do approximately 100 28cm balloons. See "Balloon Accessories"

Inflating Helium Balloons

1. Place balloon over the end of the nozzle and hold securely
2. Tilt nozzle in a forward direction for gas to flow
3. Release nozzle when balloon reaches 28cm from neck to top
4. Tie a knot at the neck or attach a balloon clip.
   
5. If using a balloon clip, give the neck a short twist between thumb & forefinger, stretch the neck, then insert into the first slot then into the second slot and continue around at least three times.
6. Balloon is ready

Is Balloon Gas Safe?

• Helium is non-toxic and non-flammable
• It should not be inhaled and can be dangerous

Cylinder Safety

• Keep cylinders upright and protect the valves from physical damage.
• Secure cylinders when standing
• If valve is damaged, do not attempt to operate
• If valve does not operate by hand, return the cylinder to the supplier
• Use eye protection when inflating balloons as a popping balloon may cause eye damage.