The VID Fire-Kill Model APS – Atrium is a system utilizing very small open watermist nozzles designed specifically for the protection of atriums and other such large rooms. The system is a horizontal zoned deluge system and is designed to blend into the building structure for esthetic appearance. Each nozzle can be supplied in any RAL colour and is no larger than 1cm³. The system can cover up to 13m from the installation point on the wall, making it possible to protect most atriums with wall installed nozzles only. The system operates with as low as 5 bar and can save up to 85% water consumption compared to sprinkler solutions.