I have Shih Tzus and Shih Tzu crosses. I find that their fur is very different from my Border collie cross or other dogs that I've had. It is very close to human hair in texture and when they need a hair cut their hair drifts off in little clumps like feathers. I do keep them clipped fairly short all year round but that's to avoid matting and burrs not an allergy solution.
Lacey (7yrs) Shih Tzu/Chi, Buster (5yrs)Shih Tzu, Mavis (5yrs) Border cross,Lily (2yrs) Shih Tzu, and two of the best human boys
Spelling is an option