For use with supplied air respirators, portable, continuous-use Respiratory Protectors provide clean, humidified air to workers, while allowing freedom of movement. They convert carbon monoxide to carbon dioxide as well as remove other toxic gases from breathing air. Using low-temperature LT CAT catalyst, systems do not require desiccant dryers. Available in 10 and 50 scfm models, they are packaged in weatherproof enclosure and include carbon monoxide monitor.