3M Aura 9322+ Gen3 FFP2 Valved Disposable Respirator (Box 10) The new Aura™ 9300+Gen3 disposable respirator series with the new 3M™ Cool Flow™ Comfort Valve with innovative film technology. Easier to use, improved comfort and enhanced durability! Get comfortable and reliable FFP2 breathing protection in hazardous workplace environments, with 3M™ Aura™ Particulate Respirator 9322+Gen3. This is the third generation of the best-selling 3M Aura disposable respirator, featuring the original 3-panel, flat-fold design.