Hybrid operating rooms present the highest prestige and modernity in hospital surgical wards. In September 2018 there was the opening ceremony of hybrid operating room in Regional Specialist Hospital in Olsztyn. The hybrid room is equipped with Agat Clean LED luminaires which ensure natural white light of high CRI >95 index. The Agat Clean luminaires enable emission of green light, which shows very clearly changes in a body, for example, bleedings.