RedCel Hard Hyperbaric Chamber — Duo+ (2 Person)
RedCel Hard Hyperbaric Chamber — Duo+ (2 Person)
Multi-Person Clinical-Grade 2.0 ATA Hyperbaric Oxygen Therapy
Designed for high-throughput clinics, rehabilitation centres, and professional performance facilities
The RedCel Duo+ Hard Hyperbaric Chamber is a large-capacity, 2.0 ATA clinical hyperbaric system engineered for professional medical, rehabilitation, and elite performance use.
With capacity for up to two people, a reinforced stainless-steel round chamber, and dual high-flow oxygen delivery, the Redcel Duo+ is designed for busy clinics and recovery centres requiring consistent performance, exceptional safety, and the ability to treat multiple users simultaneously.
It is important to note that on the Redcel Duo+ both users can sit by side by side and can therefore both sit or recline fully when using the chamber whereas with the Redcel Duo both users sit face to face and can only sit.
Why the Redcel Duo+?
Operating at 2.0 ATA, the Redcel Duo+ delivers true clinical-grade hyperbaric oxygen therapy (HBOT)—allowing oxygen to dissolve directly into blood plasma and reach tissues that cannot be adequately oxygenated under normal atmospheric pressure.
Compared to mild or soft chambers, this enables:
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Deeper tissue oxygenation
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Faster healing and recovery
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Reduced systemic inflammation
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Enhanced neurological oxygen delivery
Hard chambers operating at 2.0 ATA are considered clinical-grade and should be operated under professional supervision.
Key Benefits
🫁 High-Capacity Clinical Oxygen Delivery
Dual oxygen concentrators deliver up to 20 L/min, supporting multiple users without compromising oxygen saturation.
🏥 Built for Professional & Medical Use
Designed for high-volume hyperbaric clinics, rehabilitation centres, and medical environments.
🧠 Neurological & Cognitive Support
Used in professional settings for post-concussion protocols, TBI rehabilitation, stroke recovery, and cerebral oxygen optimisation.
💪 Accelerated Healing & Recovery
Supports tissue repair, stem-cell mobilisation, collagen synthesis, and inflammation reduction.
⚡ High-Throughput Performance Recovery
Ideal for sports teams and recovery centres treating multiple athletes in parallel.
🌿 Longevity & Systemic Wellness
Supports immune health, cellular regeneration, and long-term wellness outcomes.
Round Hard-Chamber Design
The Redcel Duo+ uses a round stainless-steel chamber structure, which offers:
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Greater pressure stability
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Reduced structural deformation
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Lower operational noise
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Enhanced long-term durability
Large viewing windows and a wide sliding door create a bright, accessible interior, reducing claustrophobia while allowing full monitoring during treatment.
Technical Specifications
Chamber Cabin
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Capacity: 2 People
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Operating Pressure: 2.0 ATA
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Chamber Size: approx. 2080 × 1651 × 1832 mm (82 × 65 × 72 in)
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Door Size: approx. 20 in (L) × 36 in (H)
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Material: Stainless Steel
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Net Weight: 420 kg
All-in-One Oxygen System
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Oxygen Concentrators: Dual system (2 × 10 L/min)
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Total Oxygen Flow: 20 L/min
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Designed for continuous clinical operation
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High-efficiency filtration and moisture resistance
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Stable oxygen output for extended sessions
Enhanced Air & Cooling System
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Air Flow: ~240 L/min
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Integrated air cooling, drying, and ventilation
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Removes heat, humidity, and excess CO₂
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Oil-free air compression
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Quiet operation (≈45 dB)
Advanced Safety Systems
The Redcel Duo+ incorporates multiple redundant safety systems expected of a multi-person clinical chamber:
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Emergency pressure relief valve (rapid depressurisation)
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Automatic pressure relief valves
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Manual pressure relief (internal & external)
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Dual internal & external pressure gauges
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Triple pressure display (mechanical + digital)
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CO₂ discharge & ventilation system
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Door-close sensor lock
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Power-outage alarm
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Internal & external control panels
Each chamber undergoes 8 safety guarantees and 6 inspection stages prior to delivery
Comfort & Interior Configuration
Designed for longer sessions and multiple users:
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Flexible internal layouts (beds, benches, recliner chairs, sofa seating)
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Optional electric or powered seating
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Built-in ambient lighting
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Two-way communication system
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Optional TV / tablet / phone holder
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Low-noise operation for user comfort
Customisation Options
Available on request:
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External colour & RedCel branding
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Internal seating & layout configuration
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Control system language options
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Performance & parameter customisation
Who This Chamber Is For
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Hyperbaric & medical clinics
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Rehabilitation & physiotherapy centres
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Professional sports teams & academies
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Performance & longevity clinics
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High-volume recovery facilities
Redcel Duo+ vs Smaller Hard Chambers
| Feature | 1-Person Hard Chamber | Redcel Duo+ |
|---|---|---|
| Pressure | 2.0 ATA | 2.0 ATA |
| Capacity | 1 person | 2 people side by side |
| Oxygen Flow | 10 L/min | 20 L/min (dual) |
| Throughput | Single user | Multi-user clinical use |
| Best For | Individual treatment | High-volume clinics |
Important Safety Information
Hyperbaric oxygen therapy at 2.0 ATA is classified as clinical-grade treatment. Users should undergo appropriate medical screening and sessions should be supervised by trained professionals. Information provided is for educational purposes only and does not replace medical advice.
1.5 ATA Soft vs 2.0 ATA Hard — Which Chamber is Right for You?
A quick side-by-side to help you choose between home wellness and clinical-grade therapy.
| Feature | 1.5 ATA Soft Chamber | 2.0 ATA Hard Chamber |
|---|---|---|
| Pressure | Up to ~1.5 ATA (mild HBOT) | Up to ~2.0 ATA (clinical HBOT) |
| Oxygen Delivery | Elevates dissolved oxygen for recovery & wellness. | Much higher tissue oxygenation; deeper physiological impact. |
| Primary Use | Home wellness, athletic recovery, cognitive clarity. | Clinical protocols; advanced healing under supervision. |
| Oversight | Self-use or wellness supervision. | Professional/clinical operation recommended. |
| Portability | Lightweight, easy to install & move. | Fixed, heavier steel/acrylic build. |
| Performance & Recovery | Daily recovery, soreness reduction, training volume support. | Elite-level recovery; reduces downtime after intense training. |
| Neurological Support | Helps focus/fatigue; post-concussion wellness. | Used in clinics for TBI & stroke recovery. |
| Who It’s For | Athletes, wellness users, families. | Clinics, pro teams, medical practices. |
*Hard chambers at 2.0 ATA should be operated by trained professionals. Information provided for wellness & educational purposes.
Please Note: Delivery & Installation are Quoted on a case by case basis. The Listed price does not include delivery and installation. Other Colours are available on request.
Warranty
At Bulldog Gear, we stand behind the quality of our equipment. Due to the wide variety of products we offer, warranty terms can vary by category. The following outlines the terms and conditions of our product warranties.
General Warranty Exclusions
The following issues are not covered under any Bulldog Gear warranty:
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Improper use or misuse of equipment
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Normal wear and tear
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Lack of proper maintenance
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Unauthorised repairs or modifications
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Negligence or damage from incorrect storage or assembly
Note: Using Home Gym Series or any product marked non-commercial in a commercial environment will void its warranty. If you’re unsure about product suitability, please contact our customer service team.
Warranty Claims Process
If you believe your item has a manufacturing defect or cosmetic issue:
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Submit your claim within 30 days of receiving the item.
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Retain all original packaging. If the packaging has been disposed of, it is your responsibility to repackage the item adequately for return.
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Email customer.service@bulldoggear.com with:
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Order name and number
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Purchase date
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Clear photos/videos of the issue
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Description of the issue
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For third-party products, contact the manufacturer directly. Our team is happy to help redirect you if needed.
Warranty Terms by Category
Barbells
| Type | Warranty |
|---|---|
| 15kg / 20kg Barbells | 1 Year |
| Shorty / Training Bars | 1 Year |
| Specialty Barbells | 1 Year |
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Must be used on a minimum 18mm gym matting or drop pads.
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Incorrect use or storage (e.g., outdoors, humid areas, leaving bar loaded) will void warranty.
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Do not drop bars when unloaded or with plates <5kg.
Bumper Plates
| Type | Warranty |
|---|---|
| 5kg (all types) | 30 Days |
| Home Gym Rubber Bumpers | 1 Year (Home Use Only) |
| Hybrid 2 / Competition Plates | 1 Year |
| Change Plates | 1 Year |
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Dropping 5kg or 10kg plates alone repeatedly will void warranty.
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Minimum flooring requirement: 18mm rubber or drop pads.
Kettlebells & Dumbbells
| Type | Warranty |
|---|---|
| Hex Dumbbells / Box KBs | 1 Year |
| Competition KBs | 1 Year |
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Covers manufacturing defects only; not wear or cosmetic damage after use.
Electronics
| Type | Warranty |
|---|---|
| Monitors | 6 Months |
| Timers | 3 Months |
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Excludes batteries, misuse, or poor environmental storage.
Selectorised & Plate Loaded Machines
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Frame: Lifetime (against welded joint separation)
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Weight Stack & Selector Shaft: 3 Years
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Bearings & Pulleys: 1 Year
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Pins, Cables, Vinyl, Upholstery, End Caps: 6 Months
Routine maintenance and proper use are required to retain warranty.
Rigs, Racks & Pull-Up Bars
| Series | Warranty |
|---|---|
| Home Gym, Bulldog, ML | 1 Year |
| Perseverance | 1 Year |
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Cosmetic damage from regular use not covered.
Storage
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Warranty assessed case-by-case.
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Must report delivery damage before assembly.
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Damage from exceeding weight limits or improper use is not covered.
Benches
| Type | Warranty |
|---|---|
| Flat & Adjustable | 1 Year |
| Zero Fold Bench | 1 Year |
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Check weight limits; misuse voids warranty.
Textiles & Upholstery
| Component | Warranty |
|---|---|
| Medicine Balls | 1 Year (No slamming) |
| Vinyl, Zips, Velcro, Stitching, Buckles | 6 Months |
Accessories & Apparel
| Product | Warranty |
|---|---|
| Weighted Vests (Fabric) | 30 Days |
| Weighted Vests (Velcro) | 3 Months |
| Weightlifting Belts | 6 Months |
| Jump Ropes | 30 Days |
| Shakers / Mugs / Flasks | 3 Months |
| Resistance Bands | 3 Months |
| Gym Rings | 6 Months |
Treadmills
| Part | Warranty |
|---|---|
| Monitor | 6 Months |
| Parts | 3 Years |
| Frame | 5 Years |
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Improper storage, use, or maintenance voids warranty.
Airbikes
| Model | Warranty |
|---|---|
| Home Gym Airbike | 1 Year (Home Use Only) |
| Airbike 4.0 | 1 Year |
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Covers defects only. Wear on grips, pedals, and fairings not covered.
Flooring
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Check for defects before installation.
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Warranty excludes improper installation, unsuitable cleaning agents, or use over unfit subfloors.
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No returns on cut flooring.
Clearance Items – Final Sale
Please note:
All clearance, sale, and “final reduction” items are sold as-is and are not covered under any Bulldog Gear warranty.
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No returns or refunds will be accepted for these products.
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By purchasing a clearance item, you acknowledge and accept these terms.
Discontinued Products
If a discontinued product is found to be defective due to manufacturing error, Bulldog Gear reserves the right to replace it with a comparable item. These cases will be assessed individually.
Third-Party Products (e.g., Concept2)
For any issues or warranty claims regarding third-party items (e.g., Concept2), please contact the manufacturer directly.
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Concept2 Support: info@concept2.co.uk
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Phone: 0115 9340140
If your product isn’t listed here or you have additional questions, contact our team:
📧 customer.service@bulldoggear.com

