How harsh were the conditions at breitenau concentration camp?

In the eyes of the Nazis, the deaf were of "minor value". The assumption that deafness was a "hereditary disease" lead to forced sterilization. Breitenau was a Nazi education and labor camp established in June 1933 in Germany. It was located in Guxhagen, ca. 15 km south of Kassel and was built around the Breitenau monastery.
By the end of 1933, 11,000 people were arrested and placed in concentration camps. Only a few of them were brought to Breitenau. After the Law for the Prevention of Hereditarily Diseased Offspring was made, Breitenau officials began to test prisoners for hereditary diseases. Many of the prisoners who were found to have hereditary diseases were often transported to euthanasia killing centers or kept at Breitenau under penalty of being forcibly sterilized.