ACS represents a major advancement in SCBA. It is significantly lighter than any other carrying system and offers the wearer the ultimate in comfort and flexibility. The result is considerably reduced user burden combined with the highest standards of performance. The ACSf was developed for the Professional Fire Service, offering high levels of comfort and performance. Built upon the success of the Propak SCBA, the ACSf integrates Thermoflex technology and a reliable two-stage pneumatic system to ensure the high quality and performance.