Spirotek 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 Tested to -40°c Typhoon™ valved masks have been tested at -40°c to ensure the masks continue to perform at extremes of temperature. Typhoon™ Valve (V) The Typhoon™ valve offers masks the ability to perform in a wide range of environments. The silicone diaphragm installed inside the valves is not affected by moisture. The valves are fully shrouded to ensure optimum protection from dust. Typhoon™ valves also feature a class-leading low breathing resistance when compared to competing valves. Anti-Clogging (D) Masks that include D in their markings mean that they have passed the dolomite test. This means that they are able to resist clogging in very fine dust environments. 4-Point Harness A 4-point rigid harness built into the mask can be used to create an optimum fit and therefore offer greater over efficiency. Inner Comfort Layer Foam padding on the inside of the mask helps to improve the face fit and offers extra comfort for the wearer, this is especially apparent over long periods of time. Adjustable Nose Piece By adding an adjustable nose piece to the masks we have allowed to fit the mask more closely to the noses profile aiding a good face fit.