Cold plasma generator made for installation. Photos: Lehnert Mobile cold plasma air purifier.
33It polarizes particles, i.e. new charge
carriers develop from
neutral gas molecules which then collide with accelerated ions
and electrons. These are highly reactive and either partially or
totally oxidize atmospheric pollutants.
33It is a catalyst for different reactions that are unusual for the
33eliminates bacteria, viruses, molds and
Principle of cold plasma sterilization
Operational cold plasma generators create electromagnetic
that can influence the environment outside of a metallic
A high-frequency, high-tension electric field generates
plasma under atmospheric pressure with the ambient temperature.
This leads to the formation of polarized and reactive articles
such as H+ or OH-. According to Werner Lehnert, cold plasma
responds to all air and surface pollutants – but its effectiveness is
depending on its composition. The following results have
already been achieved by installing cold plasma generators in the
and air conditioning systems of offices and residential
buildings, hospitals and senior care facilities:
33Bacteria: neutralization of up to 99 percent.
33Viruses: neutralization of up to 99.9 percent.
33Molds: neutralization of up to 99.9 percent.
33Dust particles in general: neutralization of up to 99 percent.
Tests in healthcare facilities must still be conducted, but hospitals,
nursing homes, hospices, commercial kitchens and laboratories
are among Werner Lehnert’s target groups. This applies in
to health protection – for example of people with weak
immune systems on oncological or quarantine stations, as well as
in nursing homes.
Air purification with cold plasma has another positive effect: it can
bind and thus eliminate odors. This is an attractive and particularly
safe solution for curbing unpleasant smells. Compared
air purification technologies (see table, page 22), cold plasma
convincing due to its non-selective functionality.
though the efficiency of cold plasma may vary, Werner Lehnert
attests it the high probability of rendering
like MRSA, Candida albicans, Streptococcus
H1N1, H5N1, E.coli and Listeria harmless. N
Bianca Flachenecker | firstname.lastname@example.org
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