Larger Hydraulic Services sets the standard for contamination control. Dry oil lasts longer and reduces wear on components as well as reducing varnish formation in the hydraulic fluid. Our desiccant breathers use filter media to remove particles greater than 0.3 microns, and a silica-gel desiccant to remove moisture from the air entering the oil reservoir and contaminating the fluid. A desiccant breather removes both moisture and dirt from the air the machine breathes. Maintaining consistent fluid condition at the optimum level is critical for performance & production. 

For more information on desiccant breathers, please contact Larger Hydraulic Services at: or call (614) 407-3864.


Desiccant Filter Breather

The Gold Standard

GUARDIAN is Air Sentry’s industry leading breather series. Some models feature an isolation check valve that keeps exhaust air from depleting the desiccant and protects from volatile fumes and splashing fluids. The GUARDIAN’s casing is constructed from Tritan®, a patented material highly resistant to impact and chemicals with a broad range of operating temperatures. These unique features equate to a longer life for your breather and your equipment.

GUARDIAN’s modular construction and optional add-on features allow you to customize each Guardian model to your specific application requirements. From the isolation check valve, to its stackable design, from its wash-down cap, or its compound indicating gauge, to the high-capacity HEPA filter, the GUARDIAN will last longer and reduce downtime giving you the flexibility you need to protect your industrial assets.

Ideal for Most Applications – The only desiccant breather series that Air Sentry recommends for diesel fuel applications.

Typical Applications:

55 Gallon Drum Adapter
  • Paper Mills
  • Power Generation
  • Water Wash-Down Applications
  • High Humidity Environments
  • Fuel Storage Tanks
  • Bulk Storage Tanks
  • Hydraulic Reservoirs
  • Lube Oil Reservoirs
  • Gearboxes

Larger Hydraulic Services is Central Ohio’s leading provider in plant reliability process solutions. We offer a wide range of Air Sentry & Whitmore products to keep your operations moving!

Guardian Data Sheet PDF

Quick Connect OilSafe Couplers PDF

Contact us:

(614) 407-3864