The Grand Dive is one of Summit to Sea’s most popular models, valued by clinics and home users alike for its balance of space, comfort, and reliability. With a 40” diameter and 90” length, it’s large enough to comfortably accommodate up to three people, or provide one user with plenty of room to recline, sit, or even exercise during a session.

This chamber is FDA-cleared as a Class II medical device (prescription required) and built in the USA with robust safety features. Dual high-efficiency compressors provide clean, consistent airflow with patented sound suppression and in-line air filtration, creating a quiet, comfortable environment. A double vent system safely regulates pressure up to 4.4 PSI (1.3 ATA), while two auxiliary valves and two large windows add flexibility and brightness inside the chamber.

Convenience is built into the design with double-sided, full-length zippers that make it easy to enter or exit from either inside or outside. At just ~127 pounds assembled, the Grand Dive is lightweight enough to move and includes a support frame, foam bolster cradle, and carrying case for easy transport or storage. Like all Summit to Sea chambers, it comes with a two-year warranty, with extended coverage available.

Key Features

• Spacious 40” × 90” design accommodates up to three people

• Flexible interior: sit, recline, lie down, or exercise during sessions

• Dual compressors with sound suppression + in-line air filtration

• Double vent system for safe, consistent pressurization to 4.4 PSI (1.3 ATA)

• Two auxiliary valves for adaptability and two viewing windows for comfort

• Easy entry with double-sided full-length zippers

• Lightweight (~127 lbs) and portable with carrying case and external frame

• Backed by a two-year warranty with optional extensions

Specifications

• Dimensions: 40” diameter × 90” length

• Weight: ~127 lbs assembled

• Power: High-efficiency compressors with sound suppression + filtration

• Includes: Frame, compressors, auxiliary valves, viewing windows, foam bolster cradle, sleeping mat, carrying case

• Add-Ons: Oxygen concentrator, hyperbaric air cooler

Optional Oxygen Concentrators Available

Enhance your HBOT setup with a compatible CAIRE oxygen concentrator.

Available options:
• CAIRE AirSep NewLife Intensity 10
• CAIRE SeQual Eclipse 5 Bundle

Prescription Requirement

This is an FDA-cleared Class II medical device, and a prescription is required for purchase. Please provide your prescription to support@biohaxys.com after placing your order. Orders cannot be fulfilled until a valid prescription is received.