How do I place an order?
Patients are welcome to place an order on our website. Medical professionals who would like to place a bulk order and resellers may contact us at info@hartfielmedical.com for bulk order information. Please note that we only ship to U.S. addresses.
What forms of payment do you accept?
We accept PayPal as well as all major credit cards, including Mastercard, Visa, American Express and Discover.
When will I be charged for my purchase?
Your form of payment will be charged when your order ships.
Do you charge sales tax? How much sales tax will I pay?
Yes, we charge your state’s applicable sales tax.

How do I change or cancel my order?
Orders that have not yet shipped may be canceled. Once your order is packaged for shipment and your payment has been processed, you will have to start a return.
How long will it take to get my order?
Please allow one to two days for processing and three to four days for shipping (longer during national emergencies and holidays).
Will my item be on sale?
Our O2 FRESH™ Nasal Cannula Covers are made from materials that are FDA approved for medical devices. The material has been tested to prove it isn’t a skin irritant and has both a biocompatibility certificate and a UL certificate. Our covers are made in the United States in a high-tech, veteran-owned facility. You can boil them, put them in through the top shelf of the dishwasher and sanitize them with a solution of hydrogen peroxide or isopropyl alcohol. The covers can be used dozens of times a day for three months or longer. When you get yours, you’ll instantly feel how solid it is and how reassuring its construction is. In short, we have put a great deal of thought, research and time into the development and creation of our unique nasal cannula cover. Our ear protectors oxygen tubing is also made in the United States. Because of our quality our prices may be higher.
How do I request a return or replacement?
Damages must be reported within three (3) days of receiving the merchandise. After that three-day period, the merchandise cannot be returned.
Do you offer a warranty?
We offer a One-Year Limited Warranty on the O2 FRESH™ Nasal Cannula Prong Cover oxygen tubing accessory. This warranty does not cover damages resulting from misuse, abuse, or loss of merchandise and is only valid in the United States. If the product fails due to a material defect, please return it to the address below for a replacement.
Hartfiel Medical
3732 Fishcreek Road, Suite 104
Stow, OH 44224

Why do you charge for shipping?
Who doesn’t love free shipping? Unfortunately, given the rising inflation costs and fuel charges, at this time, we feel we have to charge for shipping. In the future, we hope to offer a flat rate or free shipping.
Where do you ship?
We ship the O2 FRESH™ Nasal Cannula Prong Cover oxygen accessory within the continental United States.
How much will the shipping cost?
Shipping charges are automatically calculated at checkout based on where you are located.
Do you ship to PO Boxes, APO/FPO addresses, or international addresses?
Not at this time.
What happens if my package gets lost?
We’ll help you contact the carrier, but we do not take responsibility for your package once it has left our facility.
Can I place a bulk order for the O2 FRESH™ Nasal Cannula Cover?
Can I sell the O2 FRESH™ Nasal Cannula Cover in my retail store?
Do you have volume order discounts?
Yes, if you would like to place a bulk order for use in your facility, or to resell we would be happy to work with you on bulk pricing and minimum order quantities. Contact Melissa at info@hartfielmedical.com.


The O2 FRESH™ Nasal Cannula Prong Cover is covered by a one-year limited warranty. This warranty does not cover damages resulting from misuse, abuse, or loss of merchandise. It is only valid in the United States. If the product fails due to a material defect, please return it to the address below for a replacement.
Hartfiel Medical
3732 Fishcreek Road, Suite 104
Stow, OH 44224
Damages must be reported within 3 days of receiving merchandise, or the merchandise cannot be returned.


  • Clean before first use.

  • Hand-wash with a mild detergent.

  • Top shelf dishwasher safe.

  • The device is not a toy. Keep out of reach of children and pets.

  • The O2 FRESH is not microwave safe. Do not put in the microwave.

  • For use with adult low-flow nasal cannulas and some high-flow nasal cannulas. See a complete list of compatible brands here.


Your privacy is important to us. We collect the following information from visitors to our website through web forms and transactions:

  • Name

  • Address

  • Email address

  • Access dates and times

Additionally, if you place an order with us we will obtain your mailing address and payment information so we can process the order and maintain your account.
At checkout, you will have the opportunity to opt into follow-up emails with us so we can keep you informed about new products and price changes, alert you to new blog posts and newsletters, and request product reviews. We will share your address with our shipping providers to obtain the best shipping rates for you and to ensure the smooth delivery of your order.
We may also collect your information if you complete a customer survey or participate in a contest we sponsor.
How you interact with our website may also be tracked through Google Analytics and cookies so we can optimize our website performance. 
If you like or share our website content, we may track your social network data.
We do not share your data with partner organizations but may share it with ad vendors and networks such as, but not limited to, Facebook Ads and Google AdSense.
We do not share, sell, rent or otherwise disclose your information to third parties for marketing purposes. If requested and necessary, we will share your information with law enforcement agencies to protect public safety and the safety of our employees and operations.
As we continue to develop our company, customer information may be transferred to another entity as it is considered a business asset; however, you will be protected under our existing privacy policy.
J.M. Hartfiel Healthcare does not sell products to children. Anyone under 18 may only use our website under the supervision of an adult.
You may unsubscribe from marketing materials at any time or request the deletion of your data sharing by contacting us at hello@hartfielmedical.com.

What is WellAir Solutions?
WellAir is a line of air cleaners that remove infectious agents from the air and improve indoor air quality with NanoStrike™ technology. NanoStrike™ is a unique, patented technology found in all WellAir portable air-cleaning devices. It inactivates airborne microorganisms on contact. NanoStrike™ technology inactivates viruses, bacteria, mold spores, and pollen. The WellAir devices are designed to mitigate pathogens in small-to-medium indoor spaces. That’s why these air cleaning solutions cannot be found in big box stores and can only buy them directly from the manufacturer.
What does WellAir have to do with O2 FRESH™?
Hartfiel Medical is an affiliate of WellAir Solutions. We use their products, believe in their products, and receive a commission when we help WellAir make a sale.
Why should I talk to WellAir?
Wherever people are coming and going, there are microorganisms being introduced to indoor environments. When those microorganisms become airborne, smaller particles can spread across a room via air currents while larger particles settle on surfaces to be picked up by hands. The company's NanoStrike™ technology has been studied and proven to inactivate airborne microorganisms on contact, providing the first line of protection against viruses and bacteria. 
If you work in a medical facility or nursing home, WellAir Solutions’ products can help you and your patients stay healthy.
If you are a patient and have trouble breathing, WellAir’s products can improve indoor air quality in your home which could trigger your respiratory condition to flare.
What is the difference between the products?
The Defend series is FDA cleared and has WellAir Solutions' proprietary NanoStrike™ Technology and a filter. Plus, the Defend series is backed by over 30 studies that prove its effectiveness. It is designed for rapid remediation in large-to-medium spaces. This series combines NanoStrike™ Technology with a filter and can inactivate aerosolized viruses, bacteria, and fungi and purifies the air of pollen, particulate matter, volatile organic compounds, and odors.
The Protect Series are portable, plug-and-play right out of the box, and don’t require a replacement filter, which means low, long-term operating costs and no annoying replacement filters to buy. The Protect series inactivates airborne viruses, bacteria, mold spores, and pollen in the breathing zone. These devices are suitable for medium-to-small rooms or within the occupied spaces of larger rooms.
Both solutions are safe, quiet, and effective.
Where can I use the WellAir’s Defend Series?
These FDA Cleared Class II Medical Devices can be used in operating theaters, intensive care units, emergency rooms, in-vitro fertilization labs, patient wards, long-term care facilities, blood banks, patient rooms, nurses stations, examination rooms, break rooms, dental laboratories, classroom, and common areas.
Where can I use the WellAir’s Protect Series?
Health in every breath, the Protect Series offers air disinfection with NanoStrike Technology in the breathing zone in small to medium size rooms such as patient rooms, operating theatres, nurses' Station, examination rooms, classrooms, common areas, reception desks, bathrooms, supply rooms, offices and patient bedside. Plus, the Protect series can be used in any room in your home.
How do I talk to someone about WellAir products?
Please contact us here and we’ll get in touch and have a friendly conversation.

Using oxygen is hard. Where do I get support?
The COPD Foundation has a great social group that can be accessed here. The group is for everyone experiencing difficulty breathing.  Even if you don’t have COPD, you will find community-driven, trustworthy information and support groups.
Right2Breathe runs weekly support group meetings for people with any respiratory illness. Recent speakers have talked about portable oxygen concentrators and the InCourage percussion vest for the movement of mucus out of the lungs.
You can also find information and support groups on the American Lung Association website.
For additional questions contact info@hartfielmedical.com.


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