Similar to S3 but includes an additional exhalation valve.
VALVED
The Protex exhalation valve is engineered and tested to provide low inhalation and exhalation resistance, resulting in reduced temperatures inside the respirator. The valve effectively releases heat, humidity, and exhaled CO2 from the respirator. In more challenging work environments, the Protex valved option enhances the working conditions.
S3V Protex masks are 98% effective against fine dust and are suitable for protection where contamination levels are up to 20 times the occupational exposure limit.
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