Miniature Hybrid Breathers

For specialty applications

From the expansion chamber system to the check valves, every element of Des-Case’s patented miniature hybrid breathers has been designed to stand up to a wide variety of industries and applications.

The HG-1 breather is outfitted with an expansion chamber to isolate lubricants from all levels of ambient humidity. For both the HG-1 and VG-1, a clear, rugged polycarbonate casing allows for viewing desiccant as it changes color, indicating that the breather should be replaced. Check valves ensure no excess pressure/vacuum builds.

Des-Case hybrid breathers attack the source of contamination, allowing your equipment and lubricants to run longer and harder.

Mini Hybrid Breather


  • Eliminates rust-forming condensation
  • Prevents sludge deposits and water-contaminated oil
  • Provides longer oil and filter life
  • Reduces wear and tear on equipment, prolongs life
  • Increased desiccant and airflow capacity


  • Expansion chamber and internal check valve system create a nearly sealed system
  • Integrated nylon standpipe and clear polycarbonate casing allow for greater chemical compatibility and vibration resistance
  • 3µ absolute particulate filter element

Ideal for ...

  • Small gearboxes
  • Washdowns
  • High-humidity applications

How it works

As wet, dirty air is drawn through the unit, multiple 3-micron polyester filter elements remove solid particulate and the color-indicating silica gel extracts moisture. The diaphragm allows for expansion/contraction of the air within the casing as a result of temperature variations during steady-state operations (DC-HG-1 only). When air is expelled from the container, the top foam pad prevents oil mist from contacting silica gel or entering the atmosphere. The hygroscopic agent is partially reactivated by the dry air passing back through.