Specifically engineered for outdoor enclosures with volume in excess of 200 L, GORE® PolyVent XL enables internal pressure to remain equalized during changes in environmental temperatures, helping to prevent seal failure. Constructed of breathable membrane, IP69K-rated vent equalizes internal pressure by allowing air to flow freely into and out of housing at rate of 16 Lpm at 12 mbar. GORE® PolyVent XL simultaneously prevents liquid ingress at pressure of 0.3 bar for 60 sec.
This story is related to the following:Pressure & Vacuum Relief Vents | Vents