Dual-stage, Finite Series BA functions as point-of-use breathing air filter and as prefilter for critical needs such as zero air generators, membrane filters, and instrument air dryers. Compressed air is directed first through coalescer, removing over 99.97% of oil, water, and contaminant. Filtered air is then redirected upwards to inside of adsorber element where carbon element collects hydrocarbon vapors. Air purifier is available in 3/4 and 1 in. NPT connection sizes, and maxes out at 500 psi and 175°F. Manual 1/8 in. drain port comes standard.