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Watchdog desiccant breathers ensure optimum protection of industrial equipment by prohibiting the entry of moisture and particulate contamination. Contaminants enter industrial equipment as pressure differentials or fluid level changes occur. The Watchdog breathers are ideal for circulating oil systems, oil sumps, process tanks, storage tanks, vacuum systems, hydraulic systems, transformer cases, or anywhere that equipment needs to be dry and clean. Watchdog desiccant breathers perform two very important functions. They adsorb unwanted moisture inside industrial equipment using silica gel technology. Unwanted moisture can lead to corrosion, shortened fluid life, and additive depletion. They collect airborne solid particles by means of a dual, anti-static filter system. This reduces the amount of abrasive and damaging contaminants that create sludge build-up inside the fluid reservoir. Bi-directional air flow – A 360 degree air flow allows air to be breathed in and out as fluid level changes or differential pressures occur. Activated carbon – As air is expelled, it passes through activated carbon which removes oil vapors, fumes, and odors.