JSP Typhoon 735 FFP3V Valved Moulded Mask (Box 10)Code: 496913000 The Spirotek by JSP range of Typhoon Moulded Masks are selection of masks covering a wide range of tasks. The whole range features our unique Typhoon Valve technology for extremely low exhale breathing resistance for CO2 emissions and heat build up, and extremely low moisture build up. The Spirotek by JSP range of masks conform to the EN149: 2001+A1: 2009 standard. Box of 10