Some of these respirators may be flammable; use caution around heat sources and do not smoke while wearing the respirator.

有些呼吸防护口罩是可燃的，在火源附近佩戴时要注意安全，也不要在佩戴呼吸防护口罩时吸烟。

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Caution - Flammable - Do not use in locations exposed to open flame or sources of intense heat.

小心—易燃—不要在有明火或高温热源处使用。

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