I swapped from using N95s to R95s around a year or so ago and I have never looked back. If you have any sort of issues with fragrances (asthma, VCD, migraines, sensory, etc., or if you just don't enjoy the overpowering fog wafting from the discount holiday candle shelf at the store) and you haven't yet experimented beyond (K)N95s, I highly recommend it.
An R95 has the same protection as an N95 plus it is resistant to oil-based and oil-like particles. They have been pretty decent at filtering out the kinds of fragrances that tend to make me sick. I personally use 3M's 8247s, they are the best balance I have found between protection, fit, audibility, availability, and price (<$6); but your needs may be different than mine so it's worth trying out a variety.
A P95 has even stronger resistance to oils, I just have not yet found one that fits me well. Likewise, an elastomeric respirator could provide even more protection with the right cartridges (I can go to the club with organic vapor cartridges on!), but I'm still trying to find one that both gives the right protection and people can still hear/understand me when I speak (suggestions welcome).
A tip for remembering which is which is: N = Not resistant to oils, R = Resistant to oils, and P = oil-Proof. The numbers represent the minimum level of filtering provided: an N95 filters ~95% of particles (if it fits right, etc.), an N99 filters ~99% of particles, and an N100 filters ~99.97% of particles. The same is true for R95/R99/R100s and P95/P99/P100s
