5.  The applicant was born in 1966 and is currently detained at Sátoraljaújhely Prison. 6.  On 19 October 2001 he started to serve a prison sentence at Szeged Prison, where he remained until 30 January 2006. According to the applicant, he spent 63 months with eleven other inmates in three different cells (nos. 356, 358 and 215) measuring 27 square metres each, including sanitary facilities. The cells were equipped only with one tap and a toilet, separated from the living area only by a curtain. The dining table was fixed to the floor just a metre away from the toilet. The applicant had a daily one‑hour‑long outdoor activity. The yards were closed premises measuring 40 by 20 metres, about 100-150 persons being taken to the yard at a time.
The applicant was also entitled to thirty minutes’ exercise in the gym three times a week. He attended secondary school classes three times a week, six hours on each occasion. 7.  On 30 January 2006 the applicant was transferred to Budapest Prison Unit “B”, where his cells (nos. 316, 130, 325, 211, and 206) measured 27 square metres and were occupied by him and seven other men (that is, 3.4 square metres gross living space per inmate). The cells had no ventilation system and were infested with parasites. Detainees were permitted to take a shower once a week, according to the applicant, in unhygienic conditions and for no longer than 1-2 minutes.
The applicant was entitled to a daily walk of about one hour in the prison yard measuring 20 by 20 metres. He indicated, however, that he was not able to go outdoors during the period between 20 June 2009 and 12 May 2010 on those days when he was employed as a librarian. 8.  Between 12 May 2010 and 27 May 2011 the applicant continued to serve his sentence in Unit “A” of Budapest Prison. He was kept in five cells described as follows: cell nos. 8, 9 and 141 (8 square metres, three inmates), and cell nos. 3 and 252 (6.5 square metres, two inmates). Only a curtain was used as a partition between the toilet and the living area.
Throughout his detention the applicant had no out-of-cell activities other than a daily one-hour walk in the yard of the prison facility, gym exercise twice a week for about 50 minutes each time and a weekly visit to the library for about 15 minutes.
The inmates were allowed one shower per week. The shower room was equipped with four shower heads. There were about 25 inmates taken to have a shower at the same time, making it impossible to move around because of the sheer number of prisoners. 9.  On 27 May 2011 the applicant was transferred back to Unit “B” of Budapest Prison, where he spent two years in five different cells.
The size of those cells was 27 square metres. The occupancy rate varied between 8 persons (that is, 3.38 square metres gross living space per inmate) and 10 persons (that is 2.7 square metres gross living space per inmate). 10.  Since 16 June 2013 the applicant has been detained at Sátoraljaújhely Prison with three other inmates in a cell measuring 8 square metres.