The 3M™ Retrofit Carbon Monoxide Monitor Kit is designed to connect directly to the 3M™ Compressed Air Filter and Regulator Panel W-2806.3M makes comfortable protection solutions designed to ensure worker safety and meet protection requirements. Delve into 3M Products and experience the wide variety of products and replacement parts offered with powered air purifying respirators (PAPR). In addition to powered systems, 3M also offers supplied air respirators (SAR) using air from an air tank or a different external source.