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  • 15 to 375 SCFM outlet capacity
  • 18 to 450 SCFM inlet capacity
  • 150psig max pressure
  • 120°F max temperature
  • NEMA 4/4X controller
  • OSHA Grade D, CSA, CGA, and ANSI compliant


The Deltech Del-Monox Series breathing air purifier is designed to remove moisure, solid particles, oil aerosols  and mists, carbon monoxide, and hydrocarbon vapors commonly present in compressed air. The resulting air can be safely used by supplied-air breathing devices such as masks, hoods, and helmets. When used as directed, the Del-Monox purifier supplies air that meets OSHA Grade D, CSA, CGA, and ANSI standards for maximum allowable contaminant levels for compressed air breathing.

The purifier features pre-filtration to remove solids and oils, after-filters to collect remaining particles and absorb vapor, CO catalyst converter, and moisture indicator with visual color change. The standard controller is NEMA 4/4X compliant with critical LED indicators, soft on/off switch with two power recovery modes, switching failure alarms, adjustable service indications, tower and valve status LEDs, voltage free common alarm contacts, and an RS-232 communications port. 

Six Stage Filtration

  • Stage 1 General purpose filter removes solid and liquid
    contaminants down to 1.0 micron
  • Stage 2 High efficiency oil removal filter captures liquid
    aerosols and sub-micronic particles down 0.01 micron
  • Stage 3 Pressure-swing regenerative desiccant dryer removes
    water vapor to ensure the effectiveness of the catalyst bed
  • Stage 4 Dried air travels through a catalytic converter reducing
    CO concentrations by converting CO to CO2
  • Stage 5 Particulate removal filter collects contaminants 1.0 micron
    and larger from the purified air stream
  • Stage 6 Activated carbon filter removes oil vapor, trace odors
    and other gases normally absorbable by activated carbon


  • Petrochemical
  • Asbestos abatement
  • Paint spray
  • Protective coatings
  • Confined spaces