monobloc for air treatment used, it is a UTA (unit for air treatment) complete with panels that has been divided into 3 parts. the first block introduces the air into the second which is composed of: Multi-pak brand filters mod. 8RT 1123/03 and 8RT2323/03, exchanger and (perhaps) humidifier. the air is then expelled from the third block (see photo). block dimensions: 380X175cm h130cm, 135X57cm h130cm, 300X165cm h130cm, overall dimensions 515X375 h130cm