Which of the following should be avoided when using compressed gases?

Using compressed gases near open flames should be avoided because the presence of flames poses a significant ignition hazard. Compressed gases can be under high pressure and, if released, can create a flammable or even explosive environment when interacting with heat sources. This is especially critical for gases that may become flammable under certain conditions or in the presence of ignition sources. Ensuring that compressed gases are kept away from open flames significantly reduces the risk of fire or explosions, thereby enhancing safety in environments where these gases are utilized.

In contrast, regular inspections of the equipment, following safety protocols, and using a proper regulator are all important safety practices that help ensure the safe handling and use of compressed gases. These practices reduce risks and enhance the operational integrity of gas systems.