Clinical GradeFDA Cleared
For Wound Care
Perry Baromedical
Multiplace Series
Hard-Shell Multiplace·2-18+ person
Pressure3 ATA
$150,000 - $400,000+
FDA-Approved Indication●●●●Strong Evidence
Hyperbaric Therapy for Wound Healing
One of the 14 FDA-approved indications for HBOT — and one of the most evidence-backed applications in medicine.
Key Takeaways
- Wound healing is one of 14 FDA-approved indications for HBOT — the strongest evidence category.
- A 2004 Cochrane Review found HBOT reduced major amputation risk by 69% in diabetic foot ulcers.
- Chronic wounds affect 6.5 million Americans annually, costing $25 billion in healthcare spending.
- Insurance (including Medicare) covers HBOT for chronic wounds with physician prescription in accredited facilities.
- Standard protocol: 20–40 sessions at 2.0–2.4 ATA, 90–120 minutes, 5 days per week.
- HBOT requires clinical-grade hard-shell chambers — home soft-shell chambers cannot reach therapeutic pressures for wound healing.
What is Wound Healing & Diabetic Ulcers?
Chronic, non-healing wounds affect approximately 6.5 million patients in the United States annually, costing the healthcare system an estimated $25 billion per year. Diabetic foot ulcers are the most common type, affecting 15–25% of diabetic patients in their lifetime and leading to over 70,000 lower-limb amputations annually. When conventional wound care fails — proper debridement, offloading, moisture management, and infection control — hyperbaric oxygen therapy becomes a critical adjunct treatment. HBOT is one of the 14 conditions for which the FDA has specifically cleared hyperbaric oxygen therapy.
How Hyperbaric Therapy Helps Wound Healing & Diabetic Ulcers
Chronic wounds fail to heal because of insufficient oxygen delivery to the wound bed. Damaged blood vessels, edema, and infection create a hypoxic environment that stalls the healing cascade. HBOT at 2.0–2.4 ATA increases tissue oxygen tension by 10–15x, directly addressing the root cause. High-pressure oxygen stimulates fibroblast proliferation (collagen production), enhances white blood cell bactericidal activity (oxygen-dependent killing), promotes angiogenesis in the wound bed, reduces edema through vasoconstriction without reducing oxygen delivery, and potentiates the effectiveness of certain antibiotics. The result: wounds that have been stalled for months or years can resume the normal healing trajectory.
Recommended Protocol
Pressure
2.0–2.4 ATA
Sessions
20–40 sessions
Duration
90–120 minutes per session
What Does the Evidence Say?
●●●●Strong Evidence
Wound healing has the strongest evidence base of any HBOT application. A 2004 Cochrane Review found that HBOT significantly reduced the risk of major amputation in diabetic foot ulcers (RR 0.31). A 2015 systematic review in Diabetes Care confirmed that HBOT improved complete wound healing rates and reduced amputation rates. The UHMS and major wound care guidelines include HBOT as a recommended adjunct for chronic wounds that fail to respond to 30 days of standard care. Medicare and most private insurers cover HBOT for this indication with a physician prescription and treatment in an accredited facility.
FDA-Approved Indication
Wound Healing & Diabetic Ulcers is one of the 14 conditions for which the FDA has approved hyperbaric oxygen therapy. Insurance coverage may be available with a physician prescription and treatment in an accredited facility.
Recommended Chambers for Wound Healing & Diabetic Ulcers
Based on the protocol requirements — minimum 2 ATA, Clinical Grade tier. Sorted by clinical credibility score.
Clinical GradeFDA Cleared
For Wound Care
Perry Baromedical
Sigma 34
Hard-Shell Monoplace·1-person
Pressure3 ATA
$50,000 - $90,000
Clinical GradeFDA Cleared
For Wound Care
Perry Baromedical
Sigma 36
Hard-Shell Monoplace·1-person
Pressure3 ATA
$55,000 - $95,000
Clinical GradeFDA Cleared
For Maximum Comfort
Perry Baromedical
Sigma 40
Hard-Shell Monoplace·1-person
Pressure3 ATA
$65,000 - $110,000
Clinical GradeFDA Cleared
For Wound Care
Perry Baromedical
Sigma 40-II
Hard-Shell Multiplace·2-person
Pressure3 ATA
$100,000 - $160,000
Clinical GradeFDA Cleared
For Wound Care
Perry Baromedical
Sigma Elite
Hard-Shell Monoplace·1-person
Pressure3 ATA
$80,000 - $130,000
Frequently Asked Questions
Does insurance cover HBOT for wound healing?
Yes. Wound healing (specifically diabetic foot ulcers and other chronic non-healing wounds) is an FDA-approved indication. Medicare and most private insurers cover HBOT when: the wound has failed to respond to 30 days of standard wound care, treatment is prescribed by a physician, and sessions are conducted in an accredited clinical facility. Home chambers are not covered.
How many HBOT sessions are needed for wound healing?
Typical protocols are 20–40 sessions of 90–120 minutes at 2.0–2.4 ATA, 5 days per week. Most patients see measurable improvement by sessions 10–15. Some complex wounds require 40+ sessions. Treatment continues until the wound has healed or until a clinical plateau is reached.
Can a home soft-shell chamber help with wound healing?
No. Chronic wound healing requires 2.0+ ATA with 100% medical-grade oxygen — beyond the capability of any soft-shell chamber (max 1.3–1.5 ATA). This is a clinical application that requires a hard-shell chamber in a supervised medical facility, especially since insurance coverage requires an accredited facility.
What types of wounds does HBOT treat?
FDA-approved wound indications include: diabetic foot ulcers (most common), chronic refractory osteomyelitis, compromised skin grafts and flaps, crush injuries, necrotizing soft tissue infections, and select problem wounds. The wound must typically fail to respond to 30 days of standard care before HBOT is indicated.
Related Conditions
Sources & References
- Kranke et al. (2015) — Hyperbaric oxygen therapy for chronic wounds, Cochrane Database of Systematic Reviews
- Löndahl et al. (2010) — HBO therapy facilitates healing of chronic foot ulcers in patients with diabetes, Diabetes Care
- FDA — Hyperbaric Oxygen Therapy: Don't Be Misled
- UHMS — Diabetic Foot Ulcers, HBO Therapy Indications
Last updated: March 2026. Data sourced from manufacturer specifications, FDA databases, and published clinical research.
Ready to compare chambers?
Use our filterable directory to find chambers that match your protocol requirements.