Spectrum Continuous Flow Respirators Now compatible with Personal Climate Devices including the AC1000, CT Series Cool Tubes, HC2400, and HCT Series Hot/Cold Tubes, the Full-Face Spectrum takes the work out of wearing a respirator. The Spectrum Continuous Flow Supplied Air Respirator is compatible with economical low pressure air sources such as Bullard Free-Air® pumps or with conventional breathing air compressors or cylinders. Spectrum meets ANSI/ISEA Z87.1+ 2010 Impact Face Protection and OSHA Assigned Protection Factor (APF) of 1,000. Spectrum Pressure Demand Respirators The Spectrum Pressure Demand Respirator has all of the features of the Spectrum Continuous Flow with the additional protection of a pressure demand regulator system. The OSHA Assigned Protection Factor (APF) for this respirator is 1,000. Spectrum Pressure Demand with Escape Respirators The Spectrum Combination Pressure Demand/5 or 10-Minute ESCBA for Confined Spaces and Hazardous Work Environments, when equipped with the escape cylinder, is suitable for work within or escape from Immediately Dangerous to Life or Health (IDLH) environments. OSHA Assigned Protection Factor (APF) is 1,000.