The paper describes the selected lighting installations and colour options for the premises of the sanatorium. The dining room, the ward and the treatment room were identified as the studied premises, as these are places of long and frequent stay of people. Irradiation installations for disinfection of air and surfaces, a measuring device, research and measurement methods, and experimental data on people’s colour preferences were also selected for research. The energy illuminances from real irradiation installations – GALAD BBO and GALAD Viva LED, manufactured by the International Lighting Corporation “BL GROUP”, were measured. For these installations, the time of exposure to ultraviolet radiation has been determined and application options have been justified. Thus, GALAD Viva LED is recommended to be used in the air disinfection mode at distances from people of 2 m or more in special-purpose rooms (patient examination rooms, procedural rooms, etc.) with a reasonable exposure time. The GALAD BBO irradiation unit is recommended to be used at a distance of 0.30 (and people can stay at this distance for no more than 0.3 hours) to 0.60 m (no more than 1.2 hours) in small rooms, for example, in corridors, bathrooms, etc., and for a distance of 0.85 m (no more than 2 hours) for large premises. The best colour options for the perception of the space for one of the studied rooms – the treatment room – were determined. According to the results of subjective measurements, they turned out to be light grey and white colours or grey, and light blue. 1. Aizenberg, J.B. Reference Book on Lighting Engineering [Spravochnaya kniga po svetotekhnike] // Moscow, Sign, 3rd edition, revised and expanded, 2006, 972 pages.
2. Kunduradji, A.D. Lighting Designed for the Elderly Living in Institutional Settings [Osveshcheniye. oriyentirovannoye na lyudey v vozraste, prozhivayushchikh v uchrezhdeniyakh internatnogo tipa] // Svetotekhnika, 2022, # 4, pp. 12–19.
3. Glytina, A. A., Baklytskaia, L. E. A Comprehensive Approach to Adapting the Living Environment for Elderly Individuals with Visual Impairments [Kompleksnyy podkhod k adaptatsii zhiloy sredy dlya pozhilogo slabovidyashchego cheloveka] // New Ideas of the New Century: Proceedings of the International Scientific Conference of the FAD TOGU [Novyye idei novogo veka: materialy mezhdunarodnoy nauchnoy konferentsii FAD TOGU], 2017, Vol. 3, pp. 27–34.
4. Reznychenko, S.I. Psychotherapeutic Living Environment for the Elderly: Psychological Foundations of Design [Psikhoterapevticheskaya zhiznennaya sreda dlya lyudey pozhilogo vozrasta: psikhologicheskiye osnovy proyektirovaniya] // Clinical and Special Psychology [Klinicheskaya i spetsialnaya psikhologiya], 2017, Vol. 6, # 4, pp. 1–18.
5. IEC 62471:2006 “Photobiological safety of lamps and lamp systems”.
6. Griber, Yu. A., Bobovnikov, P.A. Album of Typical Designs for Colour Decoration of Interiors [Albom tipovykh proyektov tsvetovogo oformleniya pomeshcheniy] // Smolensk, ANO ‘Colour Laboratory’, 2019, 24 pages.
7. RF Standard GOST 26320–84: Studio and out of studio television equipment. Methods of subjective assessment of colour television pictures quality.

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• lighting installations
• lighting and irradiation installations
• colour design
• colour
• visual perception