半面罩是防毒面具部件之一，相对全面罩而称。阻隔人的口鼻与外界空气接触，使人员面部与外界污染空气隔离。与滤毒盒搭配使用起到呼吸防护作用。
这种面具将口鼻完全遮盖，称为半面罩过滤呼吸器。
The mask covers the nose and mouth. These are called half-mask air-purifying respirators.
因为眼睛对化学品很敏感且很容易成为细菌的入口，所以半面罩可能无法充分防护，这取决于环境中化生毒剂种类和含量。
Depending on the chemical or biological agents in the environment, a half mask may not be sufficient because the eyes are very sensitive to chemicals and offer an easy entry point for bacteria.
应用推荐