那个，人对猫毛是不过敏的，过敏原是猫的唾液、尿液、皮屑里的蛋白质。

But contrary to what you might think, it's not the fur or hair that's the real problem. People with cat allergies are really allergic to proteins in the cat's saliva, urine, and dander (dried flakes of skin). 

https://www.webmd.com/allergies/cat-allergies#1?