Respirator having an integrated oronasal mask
    1.
    发明授权
    Respirator having an integrated oronasal mask 有权
    具有综合口鼻罩的呼吸器

    公开(公告)号:US09132299B2

    公开(公告)日:2015-09-15

    申请号:US10598969

    申请日:2005-03-17

    摘要: A respirator includes an outer mask defining a first volume. An oronasal mask defines a second volume. The oronasal mask is positioned within the first volume. A primary filter is affixed to the outer mask and a secondary filter is positioned within the first volume such that the secondary filter filters air traveling from the first volume to the second volume. The secondary filter filters air traveling around a portion of the second volume. The filters are arranged to filter either particles or vapors, or a mixture of these, as required.

    摘要翻译: 呼吸器包括限定第一容积的外罩。 口鼻罩定义第二个体积。 口鼻罩位于第一容积内。 主过滤器固定到外掩模,并且次过滤器定位在第一体积内,使得二次过滤器过滤从第一体积传播到第二体积的空气。 次级过滤器过滤围绕第二容积的一部分行进的空气。 过滤器被布置成根据需要过滤颗粒或蒸汽,或这些的混合物。