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Hartfiel Medical's O2 FRESH Nasal Cannula Cover was awarded a Mobility Product Award in the Accessories, Wheelchair category in 2022 by Mobility Management.

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Hartfiel Medical was honored to be selected to participate in the highly competitive National Science Foundation Innovation Corporation (NSF I-Corp) in 2020.

Our participation in the program led to funding by the US Department of Defense. The grant, administered through The Ohio State University and performed by the University's Center For Design and Manufacturing Excellence improved the manufacturability of the O2 FRESH
Nasal Cannula Cover.

As a result, the O2 FRESH
 Nasal Cannula Cover is manufactured in the United States at a veteran-owned business. 

National Science Foundation
Woman using nasal cannula.

Inventors of the Nasal Cannula Cover!

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Melissa is determination unleashed! A killer influenza crushed her lungs when she was just a toddler.  Hospitalized for six months, the doctors told her mother to take her home and bring her back "if she didn't die." It was hard, and she never could breathe, but she survived and even graduated from college (although the only way she could get to class was by walking from  one bench to another.) 


Today, Melissa's goal is to make living with oxygen easier! Product development is her patient advocacy.


Says Melissa, "I use oxygen, like you, and I know it is difficult. I wish no one had to use oxygen and we were all healthy. But until then, I can make using oxygen easier with the O2 FRESH™ Nasal Cannula Cover I invented and patented. We have more great ideas coming, too, that will make using and living with oxygen easier and more effective!"

O2 FRESH Corporate Values: It's All About The Patient

Patient Advocacy

COPD Foundation

O2 FRESH™ inventor Mellisa Egts is a COPD Foundation State Captain involved in patient advocacy and promoting the use of the Foundation's patient and provider resources.

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Educating Next Gen Healthcare Workers

Akron STEM High School

The focus of the high school is to help young adults find a career path in healthcare.

O2 FRESH™ inventor Melissa Egts is a Biotechnology Advisor Board Member for the school.


Improved Indoor Air Quality for Respiratory Health


Indoor air quality can make respiratory conditions worse. Hartfiel Medical, is partnering with WellAir Solutions to bring their air cleaning solutions to respiratory patients. Learn more.


Our Inspiration.
We Give Thanks!

COPD patient.

Jack Hartfiel


Jack, with his wife Sara, started a construction company to pay Melissa's medical bills. Jack worked on roofs during the day and a steel mill at night to make money to pay the bills and support their family of four daughters.

At its peak, the company they created provided jobs for 13 people - a true American success story. We named our company Hartfiel Medical to honor their hard work and sacrifice.

WellAir Air Cleaning Solutions

Hartfiel Medical is proud to affiliate with WellAir and offer their FDA-approved Defend 1050 and Defend 400 portable air cleaning solutions to healthcare facilities and individuals.

WellAir’s patented technology, NanoStrike, has been independently tested and proven effective at inactivating the smallest of airborne viruses, bacteria, mold spores, and pollen. WellAir’s portable air
disinfection devices have been proven to reduce SARS-CoV-2 by 99.99%*

*Data on file, MS2 Bacteriophage SARS-CoV-2 surrogate

Air cleaner for respiratory patient.


The amount of time needed for WellAir's Defend 1050 portable

air cleaner—using NanoStrike technology—to reduce the

live SARCOV-2 virus by 99.9%