Non-Thermal Plasma

(or Cold Plasma)

In physics and chemistry, plasma is known as the 4th state of matter similar to gas in which a certain portion of the particles are ionized and there are free electrons present. Based on the relative temperatures of the electrons, ions and neutrals, plasmas are classified into thermal plasmas and non-thermal plasmas.
Thermal plasmas form at elevated (very high) temperatures and as such all have electrons, ions and neutrals are at an equilibrium (hot) thermal state. Non-thermal plasmas, however, have the ions and neutrals normally at room temperature whereas electrons are much “hotter”, usually due to electrical excitation.
The sun, stars and thunderstorm lightning are examples of thermal plasmas while the glow discharge in a fluorescent tube are examples of non-thermal plasmas that are common.


Non-thermal plasma (NTP) uses high voltage electricity to mobilize electrons to be active in an air space between equally spaced, patented electrodes.
This action results in an uncountable number of micro discharges occurring in the air and hence causes highly reactive oxidative and reductive species, e.g., atomic oxygen (O3P), OH, N, H, NH, CH, O3, O2, and plasma electrons to form in gas phase. T
his “activated” air is then mixed with odorous air and the gas phase chemical reactions transform the odorous molecules in the air to non-odorous forms.
These gas phase chemical reactions occur very fast, in most cases the reaction time is under 1 second.