Plasma Systems for Air Flow Decontamination

Princeton University Technology Overview
Motivated by the current COVID-19 pandemic, Researchers at Princeton Plasma Physics Laboratory, Princeton University, have designed a novel plasma-based in-situ device for decontaminating air flow from viruses and bacteria in real time. The use of cold, low temperature plasma to eradicate pathogens is a tested and effective technology. The Princeton device is a new steady state approach to continuously decontaminate air in ventilation systems with heating and/or air conditioning without inducing thermal or other damage.
This technology uses atmospheric plasma discharge technology for the purpose of producing cold non-equilibrium plasma(s) directed toward the targeted surface. The device can easily be made into a desirable geometry. The device is very simple in operation, constructed from inexpensive components, and powered by a simple and compact power source.


Kills bacteria and viruses
Not subject to the “shadow” problem of UV disinfection
No chemicals required
Operates continuously
Simple to operate
Constructed from inexpensive components
Powered by a simple and compact power source


Use in residential and commercial buildings, including hospitals
Add-on to air ventilation systems with heating and/or air-conditioning with recirculation
Use as part of a portable air decontamination system including hospital rooms

Princeton is currently seeking commercial partners for the further development and commercialization of this opportunity.

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