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Paul J. Sheffield, PhD (Publications 1965-2015)
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Hyperbaric Facility Maintenance Course (HFM) – Hybrid Course
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Primary Hyperbaric Medicine Course (On-site Education)
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2025 Course Calendar (PDF)
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CHT and CHRN Certification Exam Practice Book
Risk Assessment Guide, 6th Edition
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Online Store
Contact Us
ATMO
About Us
Paul J. Sheffield, PhD (Publications 1965-2015)
Resource Links
Education
ATMO Education Department
Online Continuing Education (The Learn Site)
Live-streaming Courses
Hyperbaric Medicine Team Training (HMTT)
The Wound Care Course (WC)
Hyperbaric Safety Director Course (HSD)
Hyperbaric Facility Maintenance Course (HFM) – Hybrid Course
In-Person Courses
Hyperbaric Facility Maintenance Course (HFM) – Hybrid Course
Hyperbaric Chamber Acrylics (AC)
Other Courses
Primary Hyperbaric Medicine Course (On-site Education)
2024 Course Calendar (PDF)
2025 Course Calendar (PDF)
Get Registered!
2024 Online Registration
2024 Registration Form (Fillable PDF)
2025 Online Registration
2025 Registration Form (Fillable PDF)
Publications
CHT and CHRN Certification Exam Practice Book
Risk Assessment Guide, 6th Edition
Consulting
News & Information
Online Store
Contact Us
Course Schedules
