MAGNIFYING LENS: Designed with a nose cutout, the MSA Optrel Magnifying Lens is intended for specific use with the Helix Series Welding Helmet. This clear polycarbonate lens provides magnification to help you see fine details more clearly during welding, especially when working on small or intricate welds. VARIOUS STRENGTHS: Helping to reduce strain on the eyes, the MSA Optrel Magnifying Lenses come in various diopter strengths to accommodate different levels of visual need. This model has a strength of +2.00. e3000X PAPR SYSTEM: Stay safe and breathe easy with the NIOSH-approved MSA Optrel e3000X PAPR System. Delivering 3 adjustable blower speeds (170-240 liters per minute) with an integrated airflow sensor and alerts for low flow and battery levels, this innovative system is compatible with a full range of accessories for advanced respiratory protection and customizable comfort. VARIABLE APPLICATION: This accessory is engineered for use with other MSA Optrel Series products in a number of different settings, including stick welding, metal inert gas welding, GMAW high-performance welding, cored wire welding, TIG welding, gas welding, plasma welding, and plasma cutting. THE SAFETY COMPANY: In the spirit of the MSA mission, all units and components of the Optrel Powered Air Purifying Respirators product line harness precision engineering and project-perfect materials to craft the highest-quality reliable safety products to enable work in the safest environments possible.