Client needs: The provincial No. 6 prison was named by the Ministry of Justice in 2001 as a ministerial modernized and civilized prison. It was successively identified as a warning education base by the Provincial People's Procuratorate and Hangzhou University of Electronic Science and Technology, as a teaching practice base by Zhejiang Police Officer Vocational College, and named as a special third-level supervision and security unit by the provincial prison bureau. Base and experimental base for technical education of criminals. 经验丰富、口碑良好的创绿家环保进行室内空气检测，也是为了让大家放心。 The person in charge of the Provincial No. 6 Prison realized that indoor air quality affected physical health, and made an appointment with a well-established and environmentally friendly Chuanglvjia for indoor air testing.