OTB Spacious Sitting Chamber
Our largest soft-shell sitting chamber — a bright walk-in interior with a heavy-duty external frame at 1.5 ATA. 1.5 ATA · 7 psi. Factory-direct from Oxygen Times, Nanjing. Lead time 10-30 days, OEM and ODM from one unit.
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OTB Spacious Sitting Chamber
Our largest soft-shell sitting chamber — a bright walk-in interior with a heavy-duty external frame at 1.5 ATA.
Specifications
| Model | OTB |
|---|---|
| Build type | Soft shell |
| Working pressure | 1.5 ATA · 7 psi |
| Dimensions | Ø1.9 m × 2.0 m H |
| Capacity | Walk-in, multi-person |
| Warranty | 1 year (extendable +2 years) |
| Lead time | 10–30 days (after testing) |
| Shipping | Sea / air freight, worldwide |
| MOQ / OEM | 1 unit · OEM, ODM & colour customise |
Product overview
What The OTB Is
The Oxygen Times OTB Series is our largest soft-shell sitting hyperbaric chamber, designed for users who value generous interior space, easy access, and exceptional comfort. Featuring a walk-in design with a heavy-duty external support frame, the OTB provides a bright, open environment that allows users to sit naturally throughout each session. Its spacious interior makes it an excellent choice for premium wellness spaces, sports performance facilities, luxury residential settings, and professional demonstration rooms. Operating at up to 1.5 ATA (7 PSI), the OTB combines dependable performance, advanced safety engineering, and durable construction for long-term daily use.
Key features
- 2.0 m interior height, 1.9 m diameter
- Heavy-duty external support frame
- Walk-in upright comfort
- 1.5 ATA (7 PSI) stable performance
Who it is for
Buyers Who Choose This Model
Premium wellness studios
200 cm interior height and walk-in access make this the demonstration unit in a showroom range.
Sports performance centres
The largest usable soft-shell interior, which matters when the user is a large athlete.
Clients with limited mobility
Walk-in entry removes the floor-level transfer that rules out lying chambers for many users.
Problems it solves
What This Chamber Fixes
Chambers feel cramped
A 190 cm diameter and 200 cm interior height give one of the largest usable interiors in its class.
Getting in and out is awkward
Walk-in access at standing height rather than floor-level entry.
Soft chambers sag
A reinforced external steel frame holds the shape and keeps the interior clear of internal supports.
Application scenarios
Where The OTB Is Installed
- Premium wellness studios
- Sports performance centers
- Recovery lounges
- Luxury residential spaces
- Fitness clubs
- Spa & beauty centers
- Demonstration and experience rooms
Technical features
How It Is Built
Spacious Walk-In Design
With an impressive 2.0-meter interior height and 1.9-meter diameter, the OTB offers one of the largest usable interiors in its class. The generous space allows users to: The upright design creates a more natural and relaxing environment compared with traditional horizontal chambers.
- Sit comfortably with ample headroom
- Enter and exit with ease
- Enjoy a bright, open interior
- Experience greater freedom of movement during each session
Heavy-Duty External Support Frame
The OTB features a reinforced external steel frame that provides exceptional structural stability while maximizing usable interior space. Benefits include: The rigid frame eliminates the need for additional internal supports while creating a more open interior.
- Easy walk-in access
- Strong structural support
- Stable chamber shape
- Long-term durability
- Clean, modern appearance
Premium Viewing Experience
Two oversized transparent viewing windows allow abundant natural light into the chamber while maintaining excellent visibility. The bright white interior further enhances the feeling of openness and creates a comfortable atmosphere during extended sessions.
Stable 1.5 ATA Performance
The OTB operates at up to 1.5 ATA (7 PSI) with precision airflow management for smooth and consistent pressurization. Combined with Oxygen Times' integrated control system, users can enjoy dependable performance with intuitive operation.
Built for Everyday Reliability
Constructed from high-strength TPU-coated nylon and reinforced structural components, the OTB is engineered for dependable long-term performance. Key advantages include: Every component is designed and manufactured to support consistent daily operation.
- Heavy-duty soft-shell construction
- Excellent wear resistance
- Reinforced chamber body
- Easy maintenance
- Long service life
Reinforced Airtight Sealing
The chamber utilizes a high-strength airtight zipper system designed for reliable sealing and smooth operation. Features include:
- Durable reinforced construction
- Excellent pressure retention
- Low-maintenance design
- Long operating life
Integrated All-in-One Support System
The OTB is equipped with the Oxygen Times All-in-One System, combining the air compressor and oxygen concentrator into one compact unit.
High Oxygen Output
Delivers up to 93–95% oxygen concentration.
Quiet Operation
High-flow oil-free compressor engineered for low-noise performance.
Continuous Fresh Air Circulation
Maintains a comfortable internal environment throughout the session.
Plug-and-Play Installation
Simple setup with intuitive controls for convenient everyday operation.
Multiple Built-In Safety Features
Safety is integrated into every aspect of the OTB design. Standard features include: Every chamber is individually pressure-tested and quality-inspected before shipment.
- Dual automatic pressure relief valves
- Manual pressure release valve
- Interior pressure gauge
- Reinforced external frame
- Heavy-duty chamber construction
- Window pressure support system
- Stable pressure management
Spacious by Design. Built for Everyday Confidence.
The OTB Series offers an exceptional combination of spacious comfort, walk-in convenience, dependable 1.5 ATA performance, and durable engineering. Designed for users seeking maximum interior space and reliable daily operation, the OTB delivers a premium pressurized environment that reflects Oxygen Times' commitment to quality, comfort, and innovation.
Specifications
Full Technical Data
Every figure below comes from the factory specification for this model. Where a value is not published it is marked TBC rather than estimated.
| Chamber Type | Spacious Sitting Chamber |
|---|---|
| Operating Pressure | Up to 1.5 ATA (7 PSI) |
| Interior Height | 200 cm (78.7") |
| Chamber Diameter | 190 cm (74.8") |
| Chamber Material | High-strength TPU-coated reinforced nylon |
| Structure | Heavy-Duty External Steel Frame |
| Sealing System | Reinforced Airtight Zipper |
| Viewing Windows | Dual Oversized Transparent Windows |
| Oxygen Supply | Up to 93% via Mask or Nasal Cannula |
| Lead Time | Approximately 25–30 Days After Quality Testing |
| OEM / ODM | Available |
Optional upgrades
- Secondary Air Compressor
- Protective Outer Cover
- Additional Oxygen Accessories
- Customized Chamber Colors
- Private Label Branding
- Export Packaging Solutions
Quality control
Tested Before It Leaves Nanjing
- Pressure testing
- Airtightness inspection
- Functional performance testing
- Appearance inspection
- Secure export packaging for air or sea freight
Certifications: no product certification is claimed for this model, because the factory documentation behind this page carries no certificate numbers or issuing bodies. This is marked TBC deliberately. If your market requires a specific mark, raise it with the factory before ordering - regional certification support is offered as part of the OEM service.
Customisation
OEM ODM And Private Label
Minimum order is one unit, including chamber colour and logo printing. Manuals, packaging, accessories, control interface and destination electrical standards are all configurable.
Comparison
How The OTB Compares
Side by side with the models buyers usually shortlist alongside it: OTSE15 Egg-Shaped Sitting Chamber · OHC20 Cubic Sitting Chamber · OTS15 Spacious Sitting Chamber.
| Specification | OTB | OTSE15 | OHC20 | OTS15 |
|---|---|---|---|---|
| Build type | Soft shell | Soft shell | Hard shell (stainless steel) | Soft shell |
| Working pressure | 1.5 ATA · 7 psi | 1.5 ATA | 2.0 ATA · 14.7 psi | 1.5 ATA · 7 psi |
| Dimensions | Ø1.9 m × 2.0 m H | Egg-shaped, extra headroom | 1350 × 780 × 1900 mm | Spacious upright, folding chair |
| Capacity | Walk-in, multi-person | Sit, recline or lie | Walk-in, sit upright | Sit, 1 person |
| Lead time | 10–30 days (after testing) | 10–30 days (after testing) | 10–30 days (after testing) | 10–30 days (after testing) |
Use guide
Running A Session Step By Step
Assemble the external frame
Erect the heavy-duty external steel frame on a level floor, allowing clearance to walk around the chamber.
Hang and connect
Fit the chamber envelope to the frame and connect the hose set to the All-in-One system.
Check the zipper seal
Inspect the reinforced airtight zipper and confirm the interior gauge reads zero.
Run at 1.5 ATA
Pressurise to up to 1.5 ATA with oxygen at up to 93-95% through mask or cannula.
Between sessions
Depressurise, air the interior and check the frame fixings periodically for tightness.
This page describes equipment. It is not medical advice. How a hyperbaric chamber may be used, and by whom, is set by the regulations of the country it is installed in, and meeting them is the buyer's responsibility.
Buyer questions
OTB Buyer Questions
How large is the OTB inside?
What holds the chamber up?
What is the lead time?
What optional upgrades are available?
Related Chambers
OTSE15 Egg-Shaped Sitting Chamber
Egg-shaped, extra headroom · Sit, recline or lie · Extra-spacious egg-shaped chamber that lets one adult sit upright, recline or lie down at a stable 1.5 ATA.
OHC20 Cubic Sitting Chamber
1350 × 780 × 1900 mm · Walk-in, sit upright · Spacious cubic walk-in hard-shell chamber with upright seating and stable 2.0 ATA performance.
OTS15 Spacious Sitting Chamber
Spacious upright, folding chair · Sit, 1 person · Spacious upright sitting chamber at 1.5 ATA with panoramic windows and room to read, work or relax.
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Chamber Room Planning & Installation
Get the room, the access route and the power right before the chamber ships
OEM, ODM & Private Label Manufacturing
Put your brand on a chamber the factory already builds, from one unit
How To Size A Hyperbaric Chamber For Your Users
Diameter, length and entry height decide who actually fits. A dimension-by-dimension guide across all seventeen models.
Chamber Room Checklist Before You Place The Order
Door widths, lift dimensions, floor loading and power - the checks that decide whether a chamber can be installed at all.
Talk to the factory
Get A Quote For The OTB
Send your quantity, destination port and any colour or branding requirement. Most quotes go back within 12 hours with a confirmed lead time.
Most enquiries answered within 12 hours · OEM and wholesale welcome
Tell Us What You Need
Send your specification, quantity and destination port. Our engineers reply with a technical proposal and a confirmed lead time.