A vent comprising: a vent housing defining a mounting structure , a first axial end , a second axial end , a first opening between the first axial end and the second axial end , a first airflow pathway extending from the first opening , a second opening , a second airflow pathway extending from the second opening , and a draining pathway extending from the first airflow pathway through the first axial end of the vent housing , wherein the first airflow pathway has a first segment extending in a first axial direction and a second segment extending in an opposite axial direction from the first axial direction; an inlet relief valve coupled to the housing between the first airflow pathway and the second airflow pathway , wherein the inlet relief valve is biased in a closed position and is configured to open upon a pressure differential of the second airflow pathway relative to the first airflow pathway exceeding a first threshold pressure, wherein the second segment extends from the first segment to the inlet relief valve ; an outlet relief valve coupled to the housing between the first airflow pathway and the second airflow pathway , wherein the outlet relief valve is biased in a closed position, wherein the outlet relief valve is arranged in parallel with the inlet relief valve and wherein the outlet relief valve is configured to open upon a pressure differential of the first airflow pathway relative to the second airflow pathway exceeding a second threshold pressure; and a filter assembly disposed in the vent housing , wherein the filter assembly extends across the second airflow pathway . a vent housing defining a mounting structure , a first axial end , a second axial end , a first opening between the first axial end and the second axial end , a first airflow pathway extending from the first opening , a second opening , a second airflow pathway extending from the second opening , and a draining pathway extending from the first airflow pathway through the first axial end of the vent housing , wherein the first airflow pathway has a first segment extending in a first axial direction and a second segment extending in an opposite axial direction from the first axial direction; an inlet relief valve coupled to the housing between the first airflow pathway and the second airflow pathway , wherein the inlet relief valve is biased in a closed position and is configured to open upon a pressure differential of the second airflow pathway relative to the first airflow pathway exceeding a first threshold pressure, wherein the second segment extends from the first segment to the inlet relief valve ; an outlet relief valve coupled to the housing between the first airflow pathway and the second airflow pathway , wherein the outlet relief valve is biased in a closed position, wherein the outlet relief valve is arranged in parallel with the inlet relief valve and wherein the outlet relief valve is configured to open upon a pressure differential of the first airflow pathway relative to the second airflow pathway exceeding a second threshold pressure; and a filter assembly disposed in the vent housing , wherein the filter assembly extends across the second airflow pathway . <EOS>