First, turn the carpet over, beat the back with a stick, and shoot the garbage out. Keep the dust on the front for 3 days. Hair loss is normal for wool carpets. Generally, about a year or so, the hair is clean and there is no such problem. If the maintenance method is correct, the wool carpet can be used for about 20 years.
Secondly, if you can't clean it yourself, you can ask a professional carpet cleaning company to clean it. They have professional equipment. But the premise is to ensure that you often vacuum
Finally, if there are stains on the carpet, you can buy professional carpet cleaning foam and cleaning powder. Follow the instructions. If it is wet, be sure to lay the cloth on the carpet and iron it with iron.