Electric vehicle batteries generate electricity through chemical reactions, leading to heat and gas byproducts. They endure varying operational conditions, including weather, temperature, and altitude changes, as well as temperature shifts during charge cycles. This results in pressure differences and further heat and gas production. PorVent® Pressure Release Vents offer a 2 stage breathable solution that allows air and gas exchange while blocking water, dust, and contaminants in normal operating conditions. Stage 2 activates when the battery goes through a thermal runaway event.