Bullard Air Filtration System is made of tychem material and includes a hood as well as hose. Air box contains three-stage filtration, auto-drains, filter change indicators and audible and visual alarms for high CO and low battery. It needs a compressed air system and adequate air volume capacity. It delivers continuous CO monitoring with auto calibration function. It has 15 CFM airflow at a pressure of 110 PSI. It can help workers to fulfill the Grade D breathing standards by giving high performance particulate filtration.