Moldex Classic 2555 FFP3 Valved Masks - Box of 20FFP3 valved disposable mask. Protection against harmful and toxic dusts, mists and fumes, based on water and oil. The DuraMesh structure makes the mask strong and durable, reducing consumption and maintaining shape. The ActivForm seal automatically adjusts to different face shapes and movements. Features a Ventex valve which reduces moisture and heat.