Evaluation of a Novel Protective Gas Mask during Medical Unit Activity

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Abstract
Evaluation of a battalion medical unit drill in a chemical warfare environment was carried out by comparing two respiratory protective devices: a new protective device (the Chemical Team Respirator) and the mask currently used in the Israel Defense Forces (the M-15). After a medical deployment drill conducted with 24 participants and 14 inspectors, comfort, communication, and various aspects of activity were evaluated by structured questionnaires. The new device, consisting of a hood, nose cup, and air blower system, was found to be preferable to the M-15 mask for physical and respiratory comfort, quality of visual field, and performance. The communication capabilities of the unit members, on the other hand, were severely limited by the hearing reduction caused by the hood of the new protective device. We conclude that the new device proved superior to the current mask by facilitating better performance of the team at the drill. Interference with hearing must be dealt with technically or bypassed by modifications in the unit's mode of communication.

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