Diagnostics

Here are some of the diagnostics we have performed on the OxyFog system. If you have additional diagnostics and analysis of this system available either online or in print, please email this information to greg@aaplasma.com.

• Ozone measurements inside the OxyFog system with and without the use of water nebulizers.

• Optical emission measurements and photographs of plasma.

Case-use studies

As an educational tool

• Undergraduate research project on the disinfection of salmon fillet (October 2022)

Peer-reviewed manuscripts

• Ali, M. G., Abdelhamid, A. G., & Yousef, A. E. “Ozone and non-thermal plasma as sustainable alternatives to chlorine for decontamination of alfalfa seeds and sprouts.” Food Research International 233, 118928, 2026

If you have completed a study and would like to feature it here, please email all the information to greg@aaplasma.com.

Open-Source Hardware License and Disclaimer

Open hardware release

AAPlasma LLC releases the OxyFog plasma oxidation chamber as open-source hardware for research and education. We want the scientific community to have access to an inexpensive but capable plasma system for developing new applications.

Copyright © 2022-2026 AAPlasma LLC.

What this license covers

The following materials (the “OxyFog Design Files”) are licensed under the CERN Open Hardware Licence Version 2, Weakly Reciprocal (CERN-OHL-W v2):

• 3D models of all custom parts (STL and native CAD files)

• Wiring diagrams and schematics

• The parts list, assembly instructions, and technical documentation published at the Source Location

The following are not covered by this license:

• Third-party purchased components (chamber box, enclosure, ozone generators, atomizers, heating element, fans, switches, and similar). These are governed by their manufacturers’ terms, warnings, and instructions.

• Photographs, videos, case studies, and analysis pages on this website. These remain © AAPlasma LLC / Greg Fridman, all rights reserved. Please email greg@aaplasma.com for permission to use them.

• The names “AAPlasma” and “OxyFog” and any associated logos. No trademark rights are granted.

Your rights and obligations

Under CERN-OHL-W v2 you may use, study, copy, modify, build, and sell products based on the OxyFog Design Files, including for commercial purposes, without paying any royalty. In return you must:

1. Keep all copyright, license, Source Location, and disclaimer notices intact.

2. If you distribute modified design files, note that you changed them, with the date and a description of the changes (for example, in a CHANGES.TXT file), and license your modifications under CERN-OHL-W v2.

3. If you distribute products made from the design, give recipients the design files or tell them where to find them.

The full license text is available at https://cern.ch/cern-ohl and in the download package. If anything on this page conflicts with the license, the license controls. Use of the CERN-OHL does not imply any endorsement by or involvement of CERN.

Names and attribution

You may state factually that your work is “based on the OxyFog design by AAPlasma LLC.” Please do not use the OxyFog or AAPlasma names or logos for your own build or product, or in any way that suggests endorsement by, affiliation with, or involvement of AAPlasma LLC or its personnel. We ask that modified designs carry a different name.

Intended use

OxyFog is an experimental platform intended only for research and educational use by qualified individuals in a laboratory setting.

• OxyFog is not a medical device and has not been cleared or approved by the FDA.

• OxyFog is not registered with the EPA or any other agency as a disinfection, sterilization, or pesticide device.

• OxyFog has not been validated to disinfect, sterilize, or decontaminate anything, or to make food, medical instruments, or personal protective equipment safe for use.

Any applications described on this page are possible research directions, not claims of performance or safety. Do not use OxyFog on people or animals, or to process food intended for consumption, instruments intended for patient use, or PPE intended for reuse, unless you have independently validated the process and complied with all applicable laws and regulations.

Safety warning

Building and operating OxyFog involves serious hazards, including:

• High voltage and mains electricity, used near water and mist. Risk of electric shock, injury, death, and fire.

• Ozone and other reactive oxygen and nitrogen species, which are toxic and corrosive. Ozone can harm the lungs at low concentrations. Operate only with adequate ventilation (preferably a fume hood), monitor ozone levels, and open the chamber only after residual species have been removed and levels verified safe.

• A heating coil that can cause burns or ignite materials.

• Aerosolized fluids. Never nebulize hazardous, flammable, or infectious materials without appropriate containment.

• Material degradation. The chamber environment is highly corrosive. Inspect seals, wiring, and printed parts regularly.

Never leave the system running unattended. Third-party components such as ozone generators were not designed for use in this system, and modifying them may void their warranties and safety certifications. You are solely responsible for building the system safely, for complying with electrical codes, workplace safety rules, and your institution’s environmental health and safety requirements, and for the safety of anyone near the system.

Disclaimer of warranty

THE OXYFOG DESIGN FILES, DOCUMENTATION, AND ANY PRODUCTS MADE FROM THEM ARE PROVIDED “AS IS,” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, SAFETY, OR NON-INFRINGEMENT, TO THE MAXIMUM EXTENT PERMITTED BY LAW. AAPLASMA LLC MAKES NO REPRESENTATION THAT THE DESIGN OR ANY PRODUCT IS SAFE, EFFECTIVE, OR FREE OF DEFECTS, OR THAT IT DOES NOT INFRINGE ANY PATENT OR OTHER PROPRIETARY RIGHT. THE ENTIRE RISK AS TO THE USE, QUALITY, AND PERFORMANCE OF THE DESIGN AND ANY PRODUCT IS WITH YOU.

Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, AAPLASMA LLC AND ITS OWNERS, OFFICERS, EMPLOYEES, CONTRACTORS, AND CONTRIBUTORS SHALL HAVE NO LIABILITY FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY, PUNITIVE, OR OTHER DAMAGES OF ANY KIND, INCLUDING PERSONAL INJURY, DEATH, PROPERTY DAMAGE, LOSS OF DATA, LOSS OF PROFITS, OR BUSINESS INTERRUPTION, HOWEVER CAUSED AND UNDER ANY THEORY OF CONTRACT, WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY, OR OTHERWISE, ARISING IN ANY WAY FROM THE DESIGN FILES, DOCUMENTATION, OR THE MAKING, USE, OR DISTRIBUTION OF ANY PRODUCT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Assumption of risk and indemnification

By downloading, building, modifying, operating, or distributing OxyFog or any part of it, you accept these terms, assume all risks, and agree to hold harmless and indemnify AAPlasma LLC from any liability, costs, damages, fees, and expenses, including claims by third parties, arising from your use.

Parts sold in our Store

3D-printed parts offered in our Store are sold as components for research builds of OxyFog, “as is” and subject to the same disclaimers, safety warnings, and intended-use limitations above, as well as our Store terms of sale.

Funding acknowledgment

This project was funded, in part, by NASA. This does not imply endorsement by NASA of AAPlasma LLC, OxyFog, or any product based on it.

Contributions

We welcome improvements, diagnostics, and case studies. By sending a contribution to the design, you confirm that you have the right to do so and agree that it may be released under CERN-OHL-W v2. Contact Dr. Greg Fridman at greg@aaplasma.com.