| 摘要 |
<p>A protective hood for use either in fire emergencies or as protection against escaping irritant gases in an industrial environment, comprises a bag-like head covering (2) of heat-resistant, and/or gas impermeable sheet material, the bag being transparent over at least the area which, in use, falls in front of the eyes of the wearer and having a filter pad or pads (12) positioned to cover the nose and mouth of the wearer and attached in such manner that the wearer can inhale therethrough, sealing means (10) being provided at the mouth of the bag to create a seal around the neck of the wearer when donned. The hood is fitted with at least one motor-driven fan (14) to assist in removal of accumulating exhaled gases within the hood and with power means (18) to drive the motor, the fan and the power means being arranged in the hood in such manner that power is supplied to the motor automatically when the hood is unpacked or first donned.</p> |
