Our Task Full Face Shield Shade W5 Replacement Lens is designed to exceed ANSI/ISEA 87.1 when used in conjunction with the BOLT™ Task Full Face Shield Replacement Frame (48-73-1461). The Shade W5 lens is used for hot work applications such as brazing, soldering, torch cutting, and acetylene welding. Please refer to ANSI and/or OSHA shade requirements for your given task to ensure proper protection. Attaching and removing the shields from the BOLT™ Task Full Face Shield Frame is quick and tool-free. The Shade W5 lenses are compatible with the BOLT™ Task Full Face Shield Frame, which is a part of the BOLT™ system, allowing you to Secure Accessories Simultaneously.