1, Hangzhou No.4 prison, the per capita use area of building facilities for prisoners is more than 5 square meters, and the number of residents in each cell is no more than 20.

2. The cells in Hangzhou No.4 Prison are firm, ventilated, transparent and clean, and have necessary heatstroke prevention and cold protection equipment; The kitchen is clean and hygienic, and the management system is complete.