Honeywell Fibre-Metal 4199IRUV3BP Impact Resistant Replacement Window is a high-performance face shield window engineered with durable impact-resistant construction and IR/UV shade 3 filtering to provide reliable protection against flying debris and harmful infrared and ultraviolet radiation in light welding and cutting applications. Featuring high-strength material for dependable impact resistance, a shade 3 lens for glare and radiant energy reduction, broad facial coverage for enhanced hazard shielding, and compatibility with select Fibre-Metal® headgear systems, this replacement window supports common PPE needs such as welding face shields, IR/UV protective visors, and industrial impact resistant face protection equipment. Designed to help workers maintain clear visibility while reducing exposure to sparks, heat, and radiant energy, it enhances safety, compliance, and productivity in fabrication, maintenance, and metalworking environments. This product meets ANSI Z87.1 requirements for eye and face protection and complies with applicable OSHA regulations for occupational welding and face shield use.