Another suggestion I got to improve my breathing was to get rid of the chain oiler style breather and go with a simple straight fitting.
Pull the hose clamp and hose.
Remove breather fitting.
Get a Straight 1/4" NPT x 3/8" hose barb fitting from the hardware store. I put some pipe tape on it not to seal it, but to keep the brass and aluminum thread from galling together.
Install longer hose, and hopefully that will help some more.