Protects against low level fine dust, oil or water-based mists Offers relief from nuisance levels of organic vapours (nuisance odours) 3M™ Cool Flow™ Valve: The Cool Flow valve reduces heat build-up inside the respirator - even in hot and humid conditions Colour-coded headbands offer easy protection level identification - colour coded yellow: FFP1 (APF = 4) Maximum usage level: Up to 4 x TLV for Particulates below TLV for organic vapours Braided headbands are coloured for easy identification: blue for FFP2 Comfortable, lightweight off-the-face design Good fit over a wide range of face sizes provided by convex shape, nose clip and twin-strap design