... , gas permeable, oleophobic , waterproof , ECU Protective Snap-In VentsReduce condensation, prevent contamination, equalize pressure, gas permeable, oleophobic ... non-shedding ,UV-resistant ,temperature-resistant .Protective snap –in vents, including its protective shield, injection molding bolt , ... exchange of air in response to pressure changes — in other words, they allow the enclosure to breathe. By ...