Pressure Relief Assembly

A breather assembly comprising:

• a coupling structure configured to be coupled to a housing;
• an assembly body defining an assembly opening, environmental openings, and an airflow pathway between the assembly opening and an outside environment through the environmental openings, wherein the airflow pathway comprises a vent pathway and a valve pathway functionally parallel with the vent pathway along the airflow pathway;
• a vent stand coupled to the assembly body, wherein the vent stand comprises a lateral extension defining a vent mounting surface and a valve stem extending axially outward from the lateral extension, wherein the vent pathway extends axially through the vent mounting surface and the valve stem, the vent mounting surface extends laterally outward from the valve stem, and the valve pathway surrounds the vent stand;
• a passive airflow vent having a perimetric region coupled to the vent mounting surface across the vent pathway, and an unbonded region central to the perimetric region;
• and
• a valve body disposed across the valve pathway having inner perimeter defining a valve opening and an outer perimeter defining a sealing lip, wherein the valve stem is disposed in the valve opening, and wherein the sealing lip is laterally outwards from the vent mounting surface.