Heat Blocking Face Shield Menu Technical Overview Heat Blocking Face Shield(Easy-to-Use) For Fire Fighting For Industrial Use For Ships For Air Respirator For Air Respirator Heat dissipation and maximum visibility at smoke-rich fire site Standard Specification Material PC / PES Standard Size(mm) 230 x 140 x 2 Shape Curved Luminous Transmittance 80% Luminous Transmittance(%) (380nm~780nm) Infrared Transmittance(%) (780nm~1300nm) Ifrared Transmittance(%) (1300nm~2000nm) 80 20 12 It is a product that has been tested and certified by a certification authority in a partner company.Size and thickness can be customized at the request of the customer.