ProtEX Vortex A/C are ATEX certified for Zones 1 and 21. Models 8115, 8125, 8135 and 8170 are certified to the latest EN ISO 80079-36:2016 standard and and can fill the need for safe enclosure cooling in hazardous locations. These models offer 900, 1500, 2500 or 5,000 BTU/hr cooling capacity to suit the differing needs of each enclosure and facility. The enclosure coolers operate in environments up to 175°F (80°C). With 62 dBA operation — 78 percent quieter than typical vortex coolers — they are designed to cool enclosures quietly rather than adding to industrial noise. The design of the units ensures that no ambient, dirty or humid air enters the cabinet. They do not require wiring and can be installed in minutes. A mechanical thermostat turns the unit on only when necessary. All four models have a small footprint to fit on all enclosures and in confined areas. They can be mounted to the top or side of the enclosure.