h1. Safety Procedures * Anyone who is holding down the balloon during fill and/or launch should wear leather gloves to protect against abrasion and pinch injuries. * Ensure that anyone with latex allergies is not exposed to the balloon during flight operations involving latex based balloons. * When switching helium tanks, make sure to close the main valve on the tank first before closing the secondary regulator. Otherwise pressure could get trapped in the secondary regulator’s body that is then released forcefully when the connector is loosened with the crescent wrench.