3M Elevated Temperature Universal Faceshield Holder H24T is designed to work with 3M H-700T series elevated temperature hard hats and can withstand radiant heat loads (exposures) up to 375 °F.3M Elevated Temperature Universal Faceshield Holder, H24T is designed to work with 3M H 700T series elevated temperature hard hats and can withstand radiant heat loads (exposures) up to 375 °F. Easy to use system can be fitted with a range of visors that offer good balance, close fit and a secure flip up – creating a convenient solution for face protection against a range of hazards. Also fits the 3M H 700 cap style hard hat. Does not interfere with cap mounted 3M earmuffs. Requires protective eyewear, sold separately. Meets ANSI Z87.1 2015.