A black and white photograph of an air conditioning unit mounted on a wall. The unit features a large fan and rectangular vents. Shadows and light contrast create a dramatic effect on the wall.
A modern, rectangular air conditioning or heating unit with the logo 'alpha innotec' is installed outside a building with a dark gray brick exterior. The unit is positioned against a light concrete wall, and there is overgrown grass along the edge of the pavement.
A modern building facade with large blue-tinted glass windows and several air conditioning units mounted on each floor. The sky is clear and vividly blue, dominating the background.