Is the Dorma 99 respirator any different from the N99 mask?

Comparing the Dorma 99 to a N99 mask

The Dorma 99 respirator (or 99PFE-L3 respirator) is equivalent to an N99 mask. Both masks can filter at least 99% of non-toxic airborne particles. As with the N95 mask, they are not efficient against oil-based pollutants, but they do offer a higher rate of particulate filtration.