Careers and certification
Hyperbaric Technician Certification: Requirements, Salary, and Career Paths (2026)
The short answer: becoming a certified hyperbaric technician usually takes 6 to 9 months: a 40-hour introductory hyperbaric medicine course, 480 hours of clinical experience, and a 120-question online CHT exam from the NBDHMT with a $175 fee. Certified technicians typically earn $40,000–$70,000 a year depending on setting and experience.
The role
What is a hyperbaric technician?
The person who actually runs the chamber: a trained operator who pressurizes the vessel, monitors the patient inside it, and owns the safety checklist on every session of hyperbaric oxygen therapy.
Day-to-day responsibilities inside and outside the chamber
A hyperbaric technician's core duties are chamber operation (configuring and pressurizing the vessel, managing oxygen delivery), patient monitoring (vitals, comfort, ear clearing, blood glucose where indicated), safety checks (pre-session inspection, prohibited-items screening, emergency drills), documentation (treatment records, pressures, times, incidents), and patient education (what to expect, what to wear, how to equalize). The safety workload is real enough that we maintain a separate guide on hyperbaric chamber safety; in a clinic, the technician is the person who executes it.
Where hyperbaric technicians work
Four settings hire for this role. Hospital wound care centers treat FDA-recognized indications under physician oversight and employ most certified techs. Outpatient hyperbaric clinics run the same clinical model outside the hospital. Dive and military programs staff chambers for decompression and research. And the fast-growing wellness segment (recovery centers, med spas, longevity clinics) operates mild chambers with lighter credentialing, covered in the setting-by-setting matrix below.
The four credentials
Hyperbaric technician certification options, at a glance
Four credentials cover this profession. The CHT is the default for technicians; the CHRN is the nursing track; the CHS and CHWS come from the wound care board.
| Credential | Issuing body | Who qualifies | Training | Exam | Renewal | Exam fee |
|---|---|---|---|---|---|---|
| CHT (Certified Hyperbaric Technologist) | NBDHMT | RT, PA, active-duty corpsman, EMT/paramedic, RN or LPN, NP, or physician (added qualification, not entry level) | 40h approved course within 3 years of exam + 480 clinical hours (40 supervised, TCOM module) | Online, 120 questions, 2 hours, 70% to pass | Every 2 years: 24 CEU (min 12 Category A) + 100 clinical work hours | $175 |
| CHRN (Certified Hyperbaric Registered Nurse) | BNA with NBDHMT | Registered nurses only | Same 40-hour introductory course foundation | NBDHMT-administered | Every 4 years: 40 CE hours (20 Category A); ACHRN/CHRNC: 60 CE | Not verified here |
| CHS (Certified Hyperbaric Specialist) | ABWH (endorsed by ACHM and APWCA) | Allied health professionals with 500 clinical hyperbaric hours per year for the past 2 years, plus a preceptorship | 40h approved course (ACHM, UHMS, or DoD) + employer-verified core competencies | 125 multiple-choice questions | CHT holders enter via reciprocity (1 year to pass, then 5-year validity) | $320 |
| CHWS (Certified Hyperbaric and Wound Specialist) | ABWH | Clinicians combining hyperbaric and wound care practice | Hyperbaric + wound care curriculum | ABWH-administered | Every 2 years: 20 CME (5 hyperbaric + 5 wound care) | Not verified here |
CHT vs CHRN: what is the difference?
Background, not content. The CHRN (Certified Hyperbaric Registered Nurse) is the nurse-specific track, administered by the NBDHMT together with the Baromedical Nurses Association. The CHT is open to every qualifying pathway, RNs included, so a registered nurse can hold either credential; the CHRN simply speaks the employer's language on a nursing unit. Both rest on the same 40-hour introductory course foundation. Where they diverge is renewal: the CHT recertifies every 2 years with 24 CE hours, the CHRN every 4 years with 40. Hyperbaric nurses also earn more: typical CHRN salaries run around $86,000 (Credenza Health, career data).
CHT cells are cited to the NBDHMT CHT Resource Manual (July 2022); CHRN and recertification cycles to WoundReference's NBDHMT summary; CHS and CHWS to the American Board of Wound Healing. Where a fee is not published in a source we verified, the cell says so rather than guessing.
The path
How to become a certified hyperbaric technician, step by step
Five steps, in order, per the NBDHMT CHT Resource Manual. Steps 3 and 4 are where the calendar time goes.
Meet the baseline requirements
Be at least 18 with a high school diploma or equivalent, and pass a criminal background check.
Hold a qualifying medical credential
The CHT is an added qualification, not an entry-level credential: you need a current license or certification as a respiratory therapist, physician assistant, active-duty military corpsman, EMT or paramedic, RN or LPN, nurse practitioner, or physician (7 pathways).
Complete the 40-hour introductory course
An NBDHMT-approved introductory hyperbaric medicine course, completed within 3 years of the exam date.
Log 480 clinical hours
Undersea and hyperbaric medicine clinical experience, with 40 hours directly supervised (the TCOM module included) under a CHT or CHRN preceptor with 2+ years of experience. Military alternative: 1,000 clinical hours.
Pass the CHT exam
Online, 120 questions in 2 hours, 70% to pass (84 of 120), $175 fee. Score 90%+ on the first attempt for "With Distinction".
The 40-hour introductory hyperbaric medicine course
The entry ticket is a minimum 40-hour introductory course in hyperbaric medicine, a standard designated by the UHMS and required by the NBDHMT within 3 years of your exam date (CHT Resource Manual). The defined curriculum covers hyperbaric physics, mechanisms of action, UHMS-approved indications, contraindications, patient assessment, chamber systems, safety and emergency procedures, and a final exam. Format matters: face-to-face and livestream delivery are accepted (livestream approved indefinitely since August 2022), while self-paced online courses are not recognized by the UHMS.
The 480 clinical hours and supervised internship
After the course comes 480 hours of clinical experience in undersea and hyperbaric medicine. Within those hours, 40 must be directly supervised by a preceptor who holds a CHT or CHRN with at least 2 years of experience, and the Board must be notified in writing before the internship starts. The internship includes a TCOM module (transcutaneous oxygen monitoring). Active-duty military applicants can substitute 1,000 clinical hours for the standard pathway (all from the CHT Resource Manual, July 2022).
The CHT exam
The exam is taken online: 120 questions in 2 hours, pass at 70% (84 of 120), fee $175. Score 90% or better on your first attempt and the certificate reads "With Distinction". Retake rules are strict: a 3-month wait after a failed attempt, and after a third failure you must repeat the approved course and the internship before testing again (NBDHMT; retake detail also in Credenza's CHRN FAQ).
How long does it take?
A realistic plan is 6 to 9 months from starting the course to holding the CHT. Treat that as an estimate, not a rule: it comes from training-provider timelines (Hyperbaric Business Solutions), and your actual pace depends almost entirely on how fast you can accumulate the 480 clinical hours alongside your current job. The course itself is one working week.
Compensation
Hyperbaric technician salary and job outlook
Most full-time technicians earn $40,000–$70,000 a year. There is no dedicated BLS category for this role, so every figure below comes from salary aggregators and live job postings, labeled with source and year.
The benchmarks, as published: a typical range of $40,000–$70,000 by experience, location, and facility (Baricboost); a 2026 US average estimate of $61,814 for certified techs (Hyperbaric Business Solutions, aggregator-cited); and a Texas average of $62,156, about $30 an hour (Glassdoor, 2026). Live 2026 postings bracket the range honestly: $19.80–$31.25/hr at a San Antonio wound care hospital (University Health, 2026 posting, expired), $30.26–$45.97/hr on Indeed certified-tech listings, and $35–$45/hr in UHMS classifieds (Hawaii).
Salary by experience level
| Level | Typical range (estimate) | What changes at this level |
|---|---|---|
| Entry level (0 to 2 years) | $40,000–$55,000 | Typically a certified tech in a first hospital or clinic role |
| Mid-career (2 to 5 years) | $55,000–$75,000 | Independent chamber operation, some preceptor duties |
| Senior / lead technician (5+ years) | $75,000–$90,000+ | Safety director or lead tech scope; CHRN nurses sit higher, around $86,000 |
Salary by setting and state
Setting moves the number as much as seniority. Hospital wound care pays the most stable wages with benefits but starts lowest: a 2026 San Antonio wound care posting ran $19.80–$31.25/hr (University Health, posting expired). Outpatient clinics sit in the middle. Wellness centers pay competitively where demand outruns certified supply: a Hawaii listing in the UHMS classifieds offered $35–$45/hr. State spreads are real: the Texas average of $62,156 tracks the national estimate, while high-cost states post higher hourly rates. Nurses holding the CHRN sit above the technician bands entirely, around $86,000 (Credenza Health).
The career ladder
The documented progression runs trainee → certified technician → safety officer or safety director → lead technician → program manager → director of hyperbaric services. The safety director step matters twice on this page: it is a real job title in hospital postings, and it is a staffing requirement clinic operators must plan for, covered in the employer section below.
All salary figures on this page are aggregator estimates and live postings from 2026, cited inline. Level ranges are from Edmates (secondary aggregator) and should be read as orientation, not offers.
Staying certified
Recertification and continuing education
Certification is not one-and-done. Each credential runs on its own renewal clock, and lapsing means re-testing.
The CHT renews every 2 years: 24 continuing education hours (minimum 12 in Category A, hyperbaric-specific) plus verification of 100 clinical work hours (NBDHMT CHT Resource Manual). The CHRN renews every 4 years with 40 CE hours (20 Category A); the advanced ACHRN and CHRNC need 60. The CHWS runs a 2-year cycle with 20 CME credits split between hyperbaric and wound care (cycles per WoundReference). On top of the formal minimums, the UHMS recommends 12 hyperbaric-specific CEUs per year for everyone overseeing HBOT.
Why employers should track this: an expired credential quietly turns a compliant staffing roster into a liability. Clinics that hire certified techs should calendar every team member's renewal date, budget Category A CE hours into the training plan, and verify the 100 clinical work hours are accumulating before the renewal window opens, not after it closes.
License vs certification
Do you need a license to operate a hyperbaric chamber?
No federal operator license exists. What applies instead depends on whether the chamber is run as a medical device or a wellness service.
Medical chambers operate under physician oversight: the chamber is an FDA-regulated device, the facility answers to standards like NFPA 99, accreditation (often UHMS) is the norm, and certified technicians are the practical expectation even where no statute names the CHT. Wellness mild chambers face a lighter regime: no federal operator license, rules that vary by state, and a non-medical positioning that marketing must respect. In both worlds, training is the differentiator a regulator, insurer, or plaintiff's attorney asks about first.
The full deep dive (state variation, physician oversight models, what insurers require) is in our operator guide: HBOT operator license and certification guide. The medical vs wellness line itself is mapped in the FDA-cleared indications explainer.
The employer side
For clinic operators: hiring and staffing certified technicians
Every other page on this topic writes to the job seeker. This section is for the person signing the paycheck: what to require, whether to hire or train, and what the line item costs.
What to require in a hyperbaric technician job post
Real employer postings (hospital wound care chains, safety director roles) converge on the same checklist (IntelyCare posting, expired):
- Approved 40-hour introductory course (UHMS, NBDHMT, DoD, or ACHM), completed before hire or within 5 years
- Active credential: CHT, CHS, or CHRN, or a license-eligible background (EMT/paramedic, RN, LPN/LVN, RT, CMA/RMA, CNA, corpsman)
- BLS certification (basic life support)
- State license where the underlying credential requires one
Model your posting on that list and you filter for candidates who can sit the CHT exam immediately. The safety screening duties in the job description should mirror the chamber safety guide.
Hire certified vs train your own staff
The UHMS position gives you the decision window: everyone overseeing HBOT should be certified within 18 months of starting hyperbaric work (WoundReference). Hiring an already-certified tech buys day-one compliance at a salary premium. Training an existing employee costs the 40-hour course tuition plus 6 to 9 months of supervised ramp toward the 480 hours, and it builds loyalty into the role. Either way, someone on staff must own the hyperbaric safety director function, so budget for that scope rather than treating it as an add-on to the tech job.
Staffing costs in your HBOT business plan
Use the salary benchmarks above as the line item: $40,000–$70,000 per technician per year, plus course tuition per trainee and roughly 12 CEU hours a year per certified staff member. Staffing is the operating cost that scales with sessions, which is why it belongs in the business model next to the equipment math: For a two-person clinical chamber in this class, the Superhuman T2 at $125,000 is the equipment line item those staffing costs sit next to. the hyperbaric chamber business guide runs the revenue side, chamber cost covers total cost of ownership, and financing covers spreading the capital side, because financing the chamber is only part of the budget.
One matrix
Certification by setting: hospital, clinic, or wellness center
The credential you need follows the chamber class and the regulatory layer, not the job title. Pressure ratings are explained in our ATA pressure guide.
| Setting | Expected credentials | Chamber class and ATA range | Regulatory layer |
|---|---|---|---|
| Hospital wound care center | CHT or CHRN expected; usually required in job postings | Monoplace or multiplace, 2.0–3.0 ATA | Physician oversight, FDA-cleared indications, NFPA 99 facility standards, often UHMS facility accreditation |
| Outpatient hyperbaric clinic | CHT, CHRN, or CHS preferred | Hard-shell monoplace, typically 2.0–2.4 ATA | FDA device rules, state facility licensing, physician medical director |
| Wellness center / spa (mild HBOT) | No federal credential requirement; IHA/IBUM-style training common (8-hour online, no medical background needed) | Soft-shell mild chambers, around 1.3 ATA | No federal operator license; state rules vary; wellness (non-medical) positioning |
| Home use | No certification required | Personal soft-shell, around 1.3 ATA | Personal use; manufacturer training and instructions |
The wellness row is the career path hospital-centric content ignores: mild-HBOT operators typically train through programs like the IHA/IBUM dual certification (8 hours online, no medical background required) rather than the NBDHMT track. What wellness operators evaluate in the equipment itself is covered in our 2026 wellness operator guide; the medical vs wellness boundary is the FDA-cleared indications explainer.
FAQ
Certification questions
How do I become a certified hyperbaric technician?
Hold a qualifying medical credential (respiratory therapist, physician assistant, active-duty corpsman, EMT or paramedic, RN or LPN, nurse practitioner, or physician), complete an NBDHMT-approved 40-hour introductory hyperbaric medicine course within 3 years of the exam, and log 480 clinical hours including a 40-hour supervised internship with the TCOM module. Then pass the CHT exam: 120 questions online in 2 hours, 70% to pass, $175 fee.
How long does it take to get hyperbaric technician certification?
Plan for roughly 6 to 9 months from starting the course to holding the CHT. This is an estimate based on training-provider timelines, not a fixed rule: the course itself is 40 hours, and most of the calendar goes to accumulating the 480 clinical hours alongside your current job.
How much does a hyperbaric technician make?
Most full-time technicians earn $40,000–$70,000 per year depending on experience, setting, and state. Aggregator estimates put the 2026 US average near $61,814, and live 2026 postings ran from $19.80 to $45.97 per hour. The BLS has no dedicated hyperbaric technician category, so every figure here comes from salary aggregators and job postings, labeled with source and year.
What is the difference between CHT and CHRN?
Background, not content. The CHRN is the nurse-specific track, administered by the NBDHMT together with the Baromedical Nurses Association; the CHT is open to every qualifying pathway, RNs included, so a registered nurse can hold either credential. Both rest on the same 40-hour introductory course foundation. Renewal differs: CHT recertifies every 2 years with 24 CE hours, CHRN every 4 years with 40.
Do you need a license to operate a hyperbaric chamber?
No federal operator license exists. Medical chambers operate under physician oversight with FDA-regulated devices and facility standards such as NFPA 99, and certified technicians are the expectation. Wellness mild-HBOT settings face lighter, state-variable rules. Our operator licensing guide covers the detail.
How much does hyperbaric technician certification cost?
The NBDHMT CHT exam fee is $175. Beyond that, budget for the 40-hour introductory course: tuition varies by provider and format (in-person or livestream), so request current pricing from the course provider directly. Recertification every 2 years adds 24 continuing education hours.
Can I work as a hyperbaric technician without certification?
In some settings, yes: wellness centers and entry-level hospital roles often train on the job. But the UHMS position is that everyone overseeing HBOT should be certified within 18 months of starting hyperbaric work, and most hospital wound care postings list an active CHT, CHRN, or CHS as a requirement or a near-term condition of employment.
What is the passing score for the CHT exam?
70%, which is 84 of 120 questions, inside a 2-hour online exam. Scoring 90% or better on a first attempt earns the "With Distinction" designation. After a failed attempt there is a 3-month wait to retest; after a third failure the NBDHMT requires repeating the approved course and internship.
Last updated: August 2026. Salary figures are aggregator estimates and job postings labeled with source and year, not offers or guarantees. This guide is educational and does not replace legal, financial, or medical advice; certification requirements change, so verify current rules with the NBDHMT, ABWH, and your state before acting.
The next step
Staffing is half the plan. The chamber is the other half.
If you are mapping out a hyperbaric service line, the business guide runs the full model: session pricing, payback math, equipment criteria, and which chamber fits which operation.