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The Summit to Sea hyperbaric chamber is an FDA-cleared soft-shell home chamber capped at 1.3 ATA, with models priced from about $7,995 for the 26-inch Shallow Dive to roughly $21,500 for the 60-inch Grand Dive Pro Plus. Its standout feature is dual redundant compressors as standard equipment, which many competitors sell as an upgrade or leave out. This guide covers the model lineup, honest specs, what 1.3 ATA does and does not deliver, and how the brand compares.
Summit to Sea has been building chambers for over 30 years, all made in the USA. The dual-compressor design is a genuine advantage: if one compressor fails, the second maintains pressure so you can finish or safely exit the session.
What models does Summit to Sea make?
Summit to Sea builds a full range of soft-shell chambers, from a single-person 26-inch model to a 60-inch chamber that fits a person plus attendant. Every model runs at the same 1.3 ATA ceiling; the differences are interior diameter, length, and price. All prices below are manufacturer starting prices and shift over time, so confirm current figures before buying.1
Summit to Sea Model Lineup
| Model | Diameter | Length | Max Pressure | Price (from) |
|---|---|---|---|---|
| Shallow Dive | 26 in | 84 in | 1.3 ATA | $7,995 |
| Dive | 33 in | 90 in | 1.3 ATA | $9,995 |
| Grand Dive | 40 in | 90 in | 1.3 ATA | $13,995 |
| Grand Dive Pro | 46 in | 8.5 ft | 1.3 ATA | $20,195 |
| Grand Dive Pro Plus | 60 in | 6.5 to 8.5 ft | 1.3 ATA | $21,495 to $21,995 |
The wider models (Grand Dive and up) suit taller users, two-person sessions, or anyone who feels boxed in by a 26 or 33-inch tube. The trade-off is footprint and cost. For where these numbers sit against other brands, see our hyperbaric chamber cost guide and our detailed cost-to-buy breakdown.
Is the Summit to Sea chamber FDA cleared?
Yes. Summit to Sea is an FDA-cleared manufacturer of soft-shell hyperbaric chambers.1 As with all portable soft chambers cleared under the FDA 510(k) pathway, the on-label indication is acute mountain sickness (altitude sickness). Every other use, from athletic recovery to general wellness, is off-label and used at the buyer’s and clinician’s discretion.
What does the 1.3 ATA ceiling mean?
Like all FDA-cleared soft chambers, Summit to Sea is limited to 1.3 ATA. This is a real limitation that buyers should understand before purchasing, because clinical hyperbaric oxygen therapy operates higher.
Burman’s 2019 review in the South African Medical Journal is explicit: exposure to pressures below 2.0 ATA while breathing air does not meet the standard definition of therapeutic hyperbaric oxygen therapy, which requires near-100% oxygen at a minimum of about 2.0 ATA.2 A soft chamber at 1.3 ATA with ambient air sits well below that bar.
The oxygen gap is measurable. Sack and colleagues (2024) recorded tissue oxygen (transcutaneous TcPO2) in chronic ulcer patients and found roughly 161 mmHg at 1.4 ATA versus 333 mmHg at 2.0 ATA, about half the tissue oxygen at the lower pressure. The authors reported no evidence that 1.4 ATA treatment benefits chronic ulcer patients.3
The practical takeaway: a 1.3 ATA soft chamber is not a substitute for clinical HBOT for conditions that require higher pressure, such as wound healing, radiation injury, or the antimicrobial effects seen only at clinical oxygen levels. It is best understood as a mild, low-pressure option. For a full comparison of the two categories, see our guide to hard-shell versus soft-shell chambers and our overview of soft hyperbaric chambers.
How does Summit to Sea compare to competitors?
Within the FDA-cleared soft-shell category, three US brands dominate: Summit to Sea, Newtowne, and OxyHealth. All cap at 1.3 ATA and are made in the USA. They separate on entry price, warranty, and standard features.
Summit to Sea vs Newtowne vs OxyHealth (FDA-Cleared Category)
| Brand (entry model) | Entry Price | Max Pressure | Warranty | Made In |
|---|---|---|---|---|
| Summit to Sea (Shallow Dive) | about $7,995 | 1.3 ATA | 2 years | USA |
| Newtowne (C4-27) | about $4,495 | 1.3 ATA | 2 years | USA |
| OxyHealth (Vitaeris 320) | about $18,000 | 1.3 ATA | 5 years | USA |
On entry price, Newtowne’s C4-27 is the lowest at about $4,495, undercutting Summit to Sea’s Shallow Dive.4 Where Summit to Sea earns its place is standard dual compressors across most models and a broad size range topping out at 60 inches. OxyHealth sits at the premium end on price but leads on warranty with 5 years of coverage, more than double the category norm.5 For a closer look at that alternative, see our OxyHealth chamber guide.
Who should buy a Summit to Sea chamber?
Summit to Sea is the right choice for:
- Buyers who want dual-compressor redundancy as a standard feature rather than an upgrade
- Users who need a wider chamber, with 40, 46, and 60-inch options for taller users or two-person sessions
- First-time buyers who want a proven brand with 30 years of history and US manufacturing
It is not the best fit for:
- Buyers chasing the lowest entry price, where Newtowne’s C4-27 wins
- Buyers who want the longest warranty, where OxyHealth’s 5-year coverage leads
- Users who need pressures above 1.3 ATA, which requires stepping outside the FDA-cleared soft-shell category into CE-certified or hard-shell units
What are the setup and operating costs?
Summit to Sea chambers run on standard 120V household power. A typical soft-chamber session costs $0.50 to $1.50 in electricity. The chambers are foldable and storable, though most users keep them set up for daily access.
Optional accessories to consider:
- Oxygen concentrator ($500 to $2,000): delivers 90% to 95% oxygen via mask inside the chamber, raising oxygen delivery above ambient air
- Interior mattress: chambers ship with basic padding; aftermarket options improve comfort for longer sessions
To see how Summit to Sea stacks up against the full field, our best home hyperbaric chambers ranking compares every major brand side by side.
The bottom line
Summit to Sea is a solid, US-made soft-shell brand whose real edge is standard dual compressors and a wide model range, not price. Entry now starts near $7,995, above Newtowne’s cheapest option, and every model caps at 1.3 ATA, which is mild pressure well below clinical HBOT. If you want redundancy and room, it is a strong pick. If you want the lowest price or the longest warranty, compare against Newtowne and OxyHealth first.
Sources
- Summit to Sea. Model specifications and pricing. summit-to-sea.com. Accessed August 2026. (Manufacturer documentation; cited for product specs and pricing only.)
- Burman F. Low-pressure fabric hyperbaric chambers. S Afr Med J. 2019;109(4). PMID: 31084683. doi:10.7196/SAMJ.2019.v109i4.13934
- Sack RA, Pikkel YY, Leitner Shemy O, Ramon Y, Ullmann Y, Zeltzer AA. Transcutaneous oximetry values in chronic ulcer patients during hyperbaric treatment at 1.4 ATA compared to 2 ATA. Undersea Hyperb Med. 2024;51(1). PMID: 38615347. PubMed
- Newtowne Hyperbarics. C4-27 chamber specifications and pricing. newtownehyperbarics.com. Accessed August 2026. (Manufacturer documentation; cited for competitor pricing only.)
- OxyHealth LLC. Vitaeris 320 specifications, pricing, and warranty. oxyhealth.com. Accessed August 2026. (Manufacturer documentation; cited for competitor pricing and warranty only.)
Medical Disclaimer
The content on BaricBoost.com is for informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
Author
Seph Fontane Pennock is the founder of BaricBoost.com and Regenerated.com, a clinic directory for regenerative medicine serving 10,000+ providers across the United States. He previously built and sold PositivePsychology.com, which grew to 19 million users and became the largest evidence-based positive psychology resource on the web. Seph brings direct experience as an HBOT patient, having completed protocols at clinics across three continents while navigating mold illness, systemic inflammation, and autoimmune conditions. His treatment journey includes hyperbaric oxygen therapy, peptide protocols, NAD+ therapy, and consultations with specialists from Dubai to Cape Town to Mexico. This combination of entrepreneurial track record and lived patient experience shapes everything published on BaricBoost.com. Every article is grounded in peer-reviewed research, informed by real clinical encounters, and written for patients making high-stakes treatment decisions. Seph's focus is on bringing transparency, scientific rigor, and practical guidance to the hyperbaric oxygen therapy space.
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