3MR256-02-01 / 256-02-01 PANEL PORTABLE 100 CFM 3M™ Portable Air Purification Panels The portable air purification panels filter and regulate air delivered to your supplied air respirator and monitor the air for carbon monoxide. The 3M™ 256-02-00 system can also help to remove limited amounts of carbon monoxide from the incoming air through a unique low temperature catalyst. Panels come in a durable carrying case and can easily be moved to different areas.