Respirators are generally used in which contexts? (Select two)

Respirators are essential personal protective equipment designed to protect workers from inhaling hazardous substances, such as toxic chemicals or particles in the air. In the context of confined space entries, respirators are particularly critical because these environments can have limited oxygen levels or exposure to harmful gases. Thus, when entering confined spaces, the use of respirators ensures that workers can breathe safely while performing their tasks in potentially dangerous conditions.

The second context in which respirators are used is during toxicant releases. When there is an uncontrolled release of a hazardous substance, immediate protective measures are vital for the safety of workers who may be exposed to airborne contaminants. Respirators provide an effective barrier against inhaling these toxicants, helping to prevent health complications from exposure.

Though respirators might be used inside control rooms depending on the specific hazards present, it is not standard practice to wear them in all work areas at all times. This practice could be unnecessary and inefficient when working in environments where there is no significant risk of inhalation hazards. Therefore, the primary contexts for respirator use are indeed during confined space entries and in the event of a toxicant release, making these the correct selections.