公开(公告)号：US20030005934A1

公开(公告)日：2003-01-09

申请号：US10217072

申请日：2002-08-12

Applicant: 3M Innovative Properties Company

Inventor： Daniel A. Japuntich ,  Nicole V. McCullough ,  Jane K. Peterson ,  Nicholas R. Baumann ,  John W. Bryant ,  Christopher P. Henderson ,  Bruce E. Penning

IPC: A62B007/10 ,  A62B023/02

CPC classification number: A41D13/11 ,  A62B18/10 ,  A62B23/025

Abstract: A filtering face mask that covers at least the nose and mouth of a wearer and that includes an exhalation valve. The exhalation valve opens in response to increased pressure when the wearer exhales to allow the exhaled air to be rapidly purged from the mask interior. An exhale filter element may be placed in one of several locations in the exhale flow stream to remove contaminants from the exhaled air. The face mask is beneficial in that it provides comfort to the wearer by allowing warm, moist, high-CO2-content air to be rapidly evacuated from the mask interior through the valve and also protects the wearer from splash fluids and polluted air while at the same time protecting other persons or things from being exposed to contaminants in the exhale flow stream.

Abstract translation: 一种至少覆盖穿戴者的鼻子和嘴部并且包括呼气阀的过滤面罩。 呼气阀响应于穿着者呼气时增加的压力而打开，以允许呼出的空气从面罩内部迅速清除。 呼气过滤元件可以放置在呼出气流中的几个位置之一中以从呼出的空气中除去污染物。 面罩是有益的，因为它通过允许温暖，潮湿，高二氧化碳含量的空气通过阀门从面罩内部快速抽空，从而为穿着者提供舒适感，并且还可以在穿着者身上防止飞溅的液体和污染的空气 同时保护其他人或事物免受呼出气流中的污染物的侵害。