Installation of a metal clip-in ceiling in two operating theaters, at Euroclinic, Athens. The clip-in plates have a powder coated antimicrobial coating and achieve hermetic sealing, ensuring the maintenance of the environmental conditions required in surgeries and clean rooms. The lighting fittings are LED technology and iP65 waterproof, suitable for use in clean spaces as they are also treated with a special antimicrobial coating, and they maintain high hygiene standards.