RJ Lab Craft India PVT.LTD is a Leading An Auto Bypass Fume Hood is an innovatively engineered, highly efficient, and exceptionally reliable laboratory ventilation system designed to provide maximum safety, unmatched comfort, and superior airflow control. Unlike standard fume hoods, this model is equipped with an automatic bypass mechanism that continuously and intelligently regulates airflow whenever the sash is raised or lowered, ensuring smooth, stable, and consistent performance.