Shaped respirator Spirotek 735 Typhoon™ with valve FFP3V The Typhoon™ series Spirotek respirator represents a respirator covering a wide range of tasks. The entire series features our unique Typhoon™ Valve technology for extremely low exhalation resistance during CO2 emissions and heat buildup, as well as extremely low moisture accumulation. The Spirotek mask series by JSP complies with the EN 149:2001+A1:2009 standard.