Moldex Classic Series Valved Masks are durable and comfortable. Ideally suited to most industrial applications, a loop strap makes it easy to put on and take off. The ActivForm(r) seal automatically adjusts to different face shapes and sizes with no need for metal nose clips. The Ventex-Valve(r) reduces heat and moisture. FFP2 NR D for protection against toxic dusts, mists and fumes based on water and oil.10 x Workplace exposure limit. EN149:2001 A1:2009.5 x Moldex Classic Series FFP2 NR D Valved Masks.