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Donaldson applies extensive filtration technology and manufacturing expertise to deliver the optimal solution for your device or enclosure.
Venting Products

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Breather Filter
This filter is designed to protect enclosures from particles, water, oils, and other liquids without adversely affecting their operation. It is comprised of a filtration membrane and a pressure-sensitive adhesive ring for securing the filter to the device.
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Breather Assembly
The assembly integrates the laminate into plastic injection parts by adhesive or by the process of heat-welding or over-moulding. The assembly provides protection from particles, water, oils and other liquids.
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Adsorbent Breather Filter or Assembly
The filter or assembly provides protection from particles and liquids but in addition from hydrocarbons, acid and base gases and the effects of water vapor, such as condensation, corrosion, and fungal growth.
Adsorbent Breather Filter
Adsorbent Breather Assembly
Adsorbent Label Filter
Adsorbent Pouch Filter
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Customised Venting Products

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Acoustic Vent
Portable electronic devices are increasingly used in outdoor environments. Therefore, it is essential to protect the speaker and microphone on these devices from environmental contaminants that could impair their effectiveness. Donaldson’s acoustically transparent filtration products provide speakers and microphones with an effective barrier to dirt, dust, hairspray, oils, perspiration, and water.
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Adsorbent Ostomy Vent
Donaldson’s breathable vents ensure ostomy bag users the most reliable protection available, which results in increased confidence and peace of mind. Our vents control embarrassing odors, prevent liquids from escaping, and eliminate bag inflation. This unsurpassed level of protection is available to ostomy bag manufacturers in a variety of formats.
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Headlamp Vents
For unsurpassed exterior lighting protection, Donaldson vents prevent water and other liquids from entering the headlamp assembly. They also provide high airflow and moisture vapor transmission for quick condensation evacuation. Consumers benefit from an improved lamp appearance, which can mean fewer customer complaints and warranty claims. Custom designed solutions are available to meet specific needs.
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Hearing Aid Vents
Hearing aid users rely on the device’s microphone and receiver as their connection to ambient sound, so it is essential to protect both from contaminants that could impair their effectiveness. Donaldson’s acoustically transparent filtration products provide the microphone and receiver with an effective barrier to dirt, dust, hairspray, oils, perspiration, and water.
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Sensor Vents
Sensors are used in a variety of environments that could subject them to harmful contaminants, such as particulates, liquids, oils, water vapor, and harmful gases. Donaldson vents protect the sensors from this contamination without compromising the design, function, or manufacturability of the devices.
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For additional information regarding customisation, click here.

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Tetratex® ePTFE Films and Laminates
The unique hydrophobic, oleophobic and high filtration efficiency properties of Donaldson’s microporous Tetratex ePTFE laminates and films are used in application such acoustical, medical, automotive, sensor and battery. In addition our portfolio of laminates can be supplied as integrated part or as a roll good
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