What is an essential consideration during the use of a BVM?

Ensuring that the mask fits snugly is crucial when using a Bag-Valve-Mask (BVM) because a proper seal is necessary to effectively deliver positive pressure ventilation to the patient. A snug fit prevents air from escaping, which maximizes the amount of oxygen delivered to the lungs and ensures that the patient is receiving adequate ventilation. If the mask does not fit properly, it can lead to ineffective ventilation and poorer outcomes for the patient.

Other considerations, such as using it solely for infants or keeping it below room temperature, do not reflect standard practices in BLS. Wearing gloves is important for infection control, but the priority must be on the technique and ensuring that the equipment is functioning correctly to provide effective ventilation.