Why is it dangerous to use mixtures of fuel gases and air or oxygen at the torch?

Using mixtures of fuel gases and air or oxygen at the torch poses a significant danger due to the risk of explosion. When these gases mix in the wrong proportions and are ignited, they can result in rapid combustion and a sudden release of energy, leading to an explosion. This is especially hazardous in enclosed spaces or if there is a buildup of gas, which can create an unstable environment.

Explosions can cause severe injuries to the operator and those nearby, as well as damage to surrounding equipment and structures. Safety protocols in welding and cutting practices emphasize the importance of using fuel gases in appropriate conditions, ensuring proper mixtures that do not exceed safe limits. This understanding is crucial for anyone involved in welding and cutting operations to mitigate potential risks associated with explosive reactions.