The 3N1 Coalescer combines three units into a single vessel; (1) Coalescing filter for liquid aerosol removal, (2) an adsorbent chamber for oil vapor removal, and (3) a particle filter for dust removal. All of our coalescing filtration systems are manufactured for all compressed air and filter applications to remove oil vapor from the gas stream. This three-stage high efficiency gas filtration system is a compact solution for a limited space requirement.