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    • 5. 发明申请
    • PERSONAL PROTECTIVE EQUIPMENT
    • WO2022008539A1
    • 2022-01-13
    • PCT/EP2021/068711
    • 2021-07-06
    • FROMANTEEL LTD
    • TAYLOR, John Crawshaw
    • A62B18/04A62B17/00A62B17/04
    • There is provided an apparatus configured to enclose a volume of air around a user's head, wherein the apparatus is configured to rest on top of the head, extend past the face and sides of the head and seal around the user's neck. The apparatus comprises a first assembly and a second assembly. The first assembly comprises a rigid holding member and a stretchable seal, wherein the seal extends from the rigid holding member and is configured to seal against the periphery of the user's neck. The second assembly comprises a rigid body that is configured to mate with and seal against the rigid holding member of the first assembly, wherein the second assembly further comprises a transparent visor that is held by the rigid body and configured to reveal the user's visage. The rigid body of the second assembly is configured to extend from the rigid holding member, around the sides and rear of the user's head, and upwards to a rigid cap, which is configured to rest on top of the user's head and carry the apparatus in use. The rigid cap comprises an air inlet/outlet configured to permit air to travel into and out from the interior volume. The second assembly further comprises a filter device that is connected to and sits on top of the rigid cap, and comprises a filter configured to collect, neutralise, kill (or 'inactivate') pathogens travelling in an airflow through it. The apparatus is configured such that air travelling between the interior volume and the external environment during normal breathing has to travel via the air inlet/outlet, and pass through the filter.