It is recommended that the NRR be reduced by 50% to better estimate typical protection

Workers must wear Safety shoes

Handling pipes

nuisance level organic vapors/acid gases

Equipped with a lightweight athletic cushion midsole and active air unit

3M™ 7503 Half Mask Large (Dark Blue)Soft silicone face piece material for comfort and durability portwest shoes It is recommended that the3M 7503 Half Mask Large (Dark Blue)Soft silicone facepiece material for comfort and durability. 3M Reusable Half Face Mask, Large, 7503 Product Details Soft sealing surface and low breathing resistance makes them comfortable to wear for long durations Cool Flow Valve helps reduce heat build up by allowing warm, exhaled air to escape Twin filter design for even distribution of weight and minimal obstruction to field of vision Bayonet style connection