Which of the following types of grenades requires a specific PPE level when deployed?

The correct choice regarding the type of grenade that requires a specific level of personal protective equipment (PPE) when deployed is the smoke grenade. Smoke grenades produce large clouds of smoke for various purposes, including concealment or signaling. The composition of smoke grenades can pose respiratory hazards due to the inhalation of smoke particles and chemicals, making the use of PPE crucial for the safety of personnel operating in close proximity.

Specific PPE may include respiratory protection to guard against inhaling harmful particulates or chemicals, as well as goggles or face shields to protect against irritation from the smoke. This attention to PPE helps ensure that personnel are safeguarded against potential health risks associated with the smoke generated by these devices.

In comparison, while concussion, flashbang, and fragmentation grenades have their own safety considerations, they do not specifically mandate the same level of PPE as smoke grenades. Concussion and fragmentation grenades primarily present risks associated with blast effects and shrapnel, requiring general safety precautions instead. Flashbangs create a loud noise and flash, which can temporarily impair the senses but typically do not involve the inhalation risks associated with smoke. Therefore, their use does not necessitate specialized respiratory protection.