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Keep moisture and dirt OUT of your hydraulic reservoir with Donaldson’s innovative new technology, the Thermally Reactive Advanced Protection™ (TRAP™) breather! It senses moisture and begins working faster and lasts longer than desiccant breathers. This is an entirely new technology that provides better protection for your oil or hydraulic fluid.

TRAP Brochure Photos and functional details White Paper “How to Prevent Water Contamination Problems” -- Technical discussion of the patented technology behind the TRAP breather, researched and co-authored by two of the industry’s most noted engineers, Bill Needelman and Dave Webb. Application Info Questions and answers about TRAP. TRAP Application Success Story – Hydraulics & Pneumatics magazine, July 2007 A reader favorite, "Fluid Power on Vacation" feature reviews a successful TRAP breather application on one of the floats at an annual Tournament of Roses Parade. Deliquescent Breathers: A New Method of Controlling Water Ingression Article published in Machinery Lubrication magazine, Nov/Dec 2006

TRAP™ Breather