The gas mask made by high grade silica gel, endure the aging,avoid allergy,durable, easy to clean.

    Double dust filters structure,convenient,fast, breathe more open.

    Double -fold the silica gel structure,with an effective seal ,a dual headphone with adjustable straps design,more comfortable to wear.
    The unique audio device,allowing you to disseminate the messages more clearly.

    May select my company's ST series of dust filter and cartridges according to the working environment,low resistance, high efficiency to hinder dust, the use of long time.
    According to the national GB2626-2006    GB2890-2009 standard.