Weird enough... He is actually very considerate on this aspect...
Like he washed her clothes and he himself baths on the morning, we don't to mention the girl, she is taking care of her hygiene good enough taking the environment she is in.
I mean it's not that bad I guess.
My only concern is their breath, I ain't see them brushing not even once-
There is a mayor difference between life in modern society and living in a tribe. That is you don't have sweets, excessive fatty stuff or other unhealthy food. So your teeth won't be affected that much. Bad breathe is also due to specific foods and diets. So if those guys gargle a bit and chew on some leafs, they're fine.

Hygiene is all I think about while reading