www.ishn.com/articles/95532-anti-fog-inserts
Anti-fog inserts
April 2, 2013
Anti-Fog Inserts for NORTH 5400-7600 series respirators are now available exclusively from Maric Performance LLC and its new line of vision-enhancing visor inserts —InVision®. The new InVision® antifog respirator, splash shield and goggle inserts are available in a wide range of sizes offering state-of-the-art anti-fog capabilities as well as offerings in photo chromic and polarizers to increase safety, reduce liability and enhance user efficiencies.
Maric Performance LLC, http://invisionvisorinserts.com. Circle 283