A series of air conditioning units are mounted on a metal structure outside a building with white paneling. Two large windows are visible behind the units, revealing the indoors with fluorescent lighting.
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.
Numerous air conditioning units are densely packed on the exterior wall of a multi-story building. The image shows a very urban setting, with a grid-like arrangement of metal platforms supporting the units. Adjacent to this setup is a zigzagging metal staircase, leading to various floors of the building. The overall appearance is industrial and cluttered.
An outdoor air conditioning unit is mounted on a textured wall with various pipes and electrical conduits running above it. The unit is labeled GREE and is connected to a green hose. Below, several empty black plastic crates are stacked haphazardly on a rough concrete surface.