JSP Typhoon Moulded Mask FFP3 Valved - (735) - Box of 10Spirotek by JSP 735 Typhoon Valved FFP3V Moulded Mask The Spirotek by JSP range of Typhoon Moulded Masks are a 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 EN 149: 2001+A1: 2009 standard. 735 Typhoon FFP3V Features