Creative Gas Detection Solutions

AFS-50 Air Filtration System

AFS-50 Air Filtration System

AFS-50 is a compact compressed breathing air filtration system that removes oil, water, solid particles and odors from a compressed air system. AFS-50 system incorporates a unique three-stage filtration concept which utilizes a prefilter, high-efficiency coalescer filter and charcoal adsorber element. The system provides uniform air distribution to four supplied-air respirators and a fifth quick-disconnect can be used for connecting a carbon monoxide monitor or an additional respirator. AFS-50 is compatible with a variety of ENMET carbon monoxide and oxygen monitors.


  • Designed for ensuring Grade D breathing air when equipped with available CO/O2 monitor
  • Two-stage prefilter/coalescer removes oils, water and solid particles
  • 50 CFM capacity with 4 outlets for connection to supplied-air respirators
  • Adsorber removes unpleasant odor and taste
  • Compatible with a variety of ENMET carbon monoxide and oxygen monitors
  • System is provided with wall-mount brackets

Inlet Pressure: Maximum 150 psi

Manifold Pressure: Maximum 100 psi, system supplied with regulator and 160 psi gauge

Pressure Relief Valve: Factory set to open at 100 psi and limits manifold pressure

Total Air Capacity: Maximum 50 CFM

Outlet Connection: Supplied with 4 quick-disconnects (Hansen series 1000 compatible) for connecting respirators. A fifth quick-disconnect can be used for connecting a CO/O2 monitor or additional respirator

Inlet Port: 1/2 inch NPT, female

Prefilter/Coalescer: Removes oil, water, and solid particles

Prefilter/Coalescer Drain: For periodically removing collected fluids in the prefilter bowl

Pressure Drop Indicator: Indicates the condition of the prefilter/coalescer element and when to change it

Adsorber: Removes unpleasant odor and taste from the air system

Adsorber Drain: For periodically removing collected fluids in the adsorber bowl

Size: 11.5 W x 14.6 H x 5 D inches (29.2 W x 37.1 H x 12.6 D cm)

Weight: 10 lbs. (4.5 kg)

Optional Plate: Painted steel construction 21 W x 17 H (53.3 W x 43.2  H cm)
Weight: 13 Lbs. (5.9 kg)


  1. AFS-50 can be supplied on a wall-mount plate, with or without a CO/O2 monitor.
  2. AFS-50 can be supplied with Schrader fittings
  • Carbon monoxide (CO)


1) AFS-50 can be supplied in a portable cradle, with or without CO/O2 monitor

2) AFS-50 can be supplied with Schrader fittings

Optional CO-Guard, Continuous Respiratory Airline Monitor:

Part Number:  03481-005

To place an order, please contact our experienced and professional customer service team:

PHONE: 734-761-1270

If you cannot find what you need or require a custom part, simply call and speak to one of our knowledgeable gas monitoring experts. They will be able to walk you through the ordering process quickly and professionally.

Description                                                  Part No.
AFS-50 Air Filtration System                        03462-001
supplied with mounting brackets
Optional plate for wall mounting                03462-002
AFS-50 in Standard Enclosure                     03462-005
AFS-50 in Stainless Steel Enclosure            03462-006

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