Recirculating laboratory fume cupboards are designed to provide effective containment and filtration of hazardous fumes, vapours, and particulate matter during laboratory processes. Unlike ducted fume cupboards, which vent air outside, recirculating fume cupboards utilise advanced filtration systems to clean and purify the air before returning it to the laboratory environment. This design makes them ideal for situations where external venting is impractical or where laboratory space is limited. Equipped with HEPA and activated carbon filters, these cupboards effectively trap harmful substances, ensuring a safer working environment for researchers. The adjustable sash allows for safe handling of materials while minimising exposure to potentially hazardous chemicals. By maintaining air quality and protecting laboratory personnel, recirculating fume cupboards are essential for laboratories focused on safety and compliance with health regulations.