Breathe Easy & Protect Your Reservoirs
Advanced Air Sentry™ Breathers to Block Moisture, Dust, and Fumes
Temperature changes cause reservoirs to “breathe,” pulling in contaminants that degrade lubricants, fuels, and battery systems. PBM Services offers the full line of Air Sentry™ breather filters – designed to prevent moisture ingress, filter fumes, and safeguard equipment in even the harshest environments.
Protect Your Lubricants and Equipment with Advanced Breathers
Ambient conditions can significantly impact stored products in sealed containers.
Standard lubricant containers—like pails, kegs, and drums—naturally “breathe.” Fluctuating temperatures cause the air in the headspace to expand and contract, drawing in moisture-laden air that condenses and contaminates the lubricant.
The same process occurs in gear reducers and hydraulic reservoirs, where operational temperature changes pull in outside air and potential contaminants.
Fuel storage tanks and containers also breathe.
This allows fuel fumes to escape while pulling in external contaminants, leading to fuel degradation, equipment damage, and hazardous fume buildup that poses fire or explosion risks.
In many facilities, electric batteries power mobile equipment.
During recharging, these batteries release dangerous fumes. Without proper filtration, this creates a serious explosion hazard.
All these challenges share a common solution: high-quality breather filters.
PBM Services Company proudly offers the Air Sentry™ line of breather vent filters to address these issues effectively.
D-Series and Z-Series
Air Sentry™ D-Series and Z-Series provide an economical, disposable option ideal for small and medium-sized reservoirs.
R-Series
Air Sentry™ R-Series breathers excel in high-vibration environments, such as hydraulic systems and gear reducers on crushing equipment. They feature a durable steel base with NPT connections.
XR-Series
Air Sentry™ XR-Series breathers are built for extreme conditions, delivering superior protection against dust, moisture, and vibration. Equipped with a steel base, NPT connections, and dual check valves in the top cap, they only allow airflow when needed – preventing unnecessary ingress of contaminants.
X-Series
Air Sentry™ X-Series breathers are engineered for high-humidity and high-dust settings, combining plastic and steel bases with NPT connections for reliable performance.
GUARDIAN® Series
Air Sentry™ GUARDIAN® represents the pinnacle of breather technology. Select models include an isolation check valve to preserve desiccant life by blocking exhaust air, while protecting against volatile fumes and splashing fluids.
Constructed from impact- and chemical-resistant Tritan®, these breathers offer modular design with customizable add-ons tailored to your application. GUARDIAN® models feature a steel base and NPT connections.
Across all Air Sentry™ series, optional activated carbon filling removes fumes and airborne chemicals – making them especially valuable for fuel storage and battery charging applications.
Every Air Sentry™ breather includes a standard 2-micron inlet and discharge filter, with an effective operating range of -20°F (-29°C) to +200°F (+93°C). For units in environments ≥150°F (66°C), we recommend a protective barrier from the heat source.
Need Help Selecting the Right Breather?
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