What is a studor vent?

A Studor vent is a type of air admittance valve (AAV) that allows air to enter a Plumbing system while preventing sewer gases from escaping. It is commonly used in drainage systems where traditional venting may be difficult or impractical, such as in remodels or in tight spaces. The valve opens to equalize pressure when water flows through the pipes and closes when not in use, ensuring a sealed system. Studor vents are often preferred for their compact design and ease of installation.