The Closed Buoy Balloon with Oral and Over‑Pressure Valve is engineered for divers who require a compact, highly reliable lift solution that performs consistently in a wide range of underwater environments. Because it is a closed buoy, it traps air securely once inflated, making it ideal for raising objects to the surface without the risk of air escaping during ascent. As a result, divers gain a stable, predictable lifting tool that supports both professional and recreational recovery tasks.

This closed buoy is designed to provide dependable positive buoyancy for lifting small to medium‑sized items such as tools, equipment, scientific samples, or debris. Since the buoy remains sealed during ascent, it maintains its internal volume and lift force even as pressure changes. This characteristic makes it especially useful in situations where maintaining consistent buoyancy is essential for safety and control.

Durable, High‑Visibility Construction

The buoy is manufactured from robust, abrasion‑resistant materials that withstand repeated exposure to saltwater, sand, and rough surfaces. Reinforced seams enhance structural integrity, ensuring the buoy performs reliably even under demanding conditions. Additionally, its bright, high‑visibility colour improves tracking during ascent and surface retrieval, which is particularly valuable in low‑visibility environments or when multiple divers are working together.

To streamline deployment, the buoy includes a dedicated oral inflation valve. This valve allows divers to inflate the buoy quickly using a second stage regulator or by oral inflation at the surface. Because the valve is easy to operate even with gloves, divers can deploy the buoy rapidly during planned lifts or unexpected recovery tasks.

A key feature of this closed buoy balloon is its integrated over‑pressure valve (OPV). As the buoy ascends and internal pressure increases, the OPV automatically vents excess air. This prevents over‑inflation, protects the buoy from damage, and helps maintain a controlled ascent profile. Consequently, divers can focus on managing the load rather than worrying about pressure buildup.