N95 is the filter rating. Like a paint booth respirator. Very fine filter. But any mask only works if fitted and sealed properly to face. And eye protection is a must. No rubbing of the eyes or mouth with unwashed hands.
That blue mask is paint respirator rated. I use it when brush hogging.
I don't think those paper ones seal to your face very well do they? And most people sure aren't wearing eye protection. Hopefully this thing will die out before it spreads to everywhere. I thought you WERE a brush hog.