Portable personal corona discharge device for destruction of airborne microbes and chemical toxins

A wearable personal corona discharge air purifier comprising:

• a battery;
• a metallic grid electrically connected to a positive terminal of the battery;
• a high voltage supply connectable between the terminals of the battery for producing a voltage of about 8 kV negative relative to the battery for producing a corona discharge, the high voltage supply comprising:
• a transformer having a primary and a secondary coil;
• a transistor with a tuning circuit controlling current flow through the primary coil of the transformer, said transistor having a gate connected to a tap of the transformer to form an oscillator feeding an alternating current into the primary coil of the transformer so that the secondary coil of the transformer outputs an alternating current of voltage spikes having voltage maxima of alternating polarities of about 2 kV, said tuning circuit setting a frequency of the voltage spikes;
• and
• a negative high voltage multiplier connected to the secondary coil to convert the alternating voltage spikes into a pulsating direct current with a voltage about -8 kV, relative to the battery, at an output of the multiplier;
• and
• an emitter point connected to an output of the voltage multiplier, the -8 kV creating a corona discharge around the emitter point, forming ozone, nitric oxide, and negative air ions, which ions are accelerated towards the metallic grid by a potential difference between the grid and the emitter point causing a mass flow of air through the metallic grid.

A wearable personal corona discharge air purifier comprising:

• an electric power source;
• a metallic grid electrically connected to the electric power source;
• a high voltage supply connectable to the electric power source for producing a voltage of about 8 kV relative to the electric power source, the high voltage supply comprising:
• a step-up power inverter for providing an alternating current with a greater peak to valley potential difference than a potential difference across the electric power source;
• and
• a high voltage cascade multiplier connected to an output of the inverter to convert the alternating current into pulsating direct current at about negative 8 kV, relative to the electric power source, at an output of the cascade voltage multiplier;
• and
• a needle emitter point connected to the output of the voltage multiplier and spaced apart from the metallic grid, the negative 8 kV creating a corona discharge around the emitter point, negative ions formed by the corona discharge being accelerated towards the metallic grid by a potential difference between the grid and the emitter point.

A wearable personal corona discharge air purifier comprising:

• an enclosure;
• a miniature fan enclosed set within a first opening into the enclosure;
• a filter covering an air intake of the fan so that air is drawn through the filter by the fan;
• a low voltage electric power source;
• a metallic grid covering a second opening into the enclosure, the grid electrically connected to a first terminal of the electric power source;
• a high voltage supply connectable to a second terminal of the electric power source for producing a voltage of about 8 kV, relative to the electric power source, for producing a corona discharge, the high voltage supply comprising:
• a transformer;
• a transistor oscillator controlling current flow through the transformer so that the transformer outputs an alternating current with a peak to valley potential difference greater than a potential difference across the electric power source;
• and
• a high voltage multiplier connected to the transformer to convert the alternating current into direct current at about 8 kV, relative to the electric power source, at an output of the voltage multiplier;
• and
• an emitter point connected to the output of the voltage multiplier and spaced apart from the metallic grid, a corona discharge created around the emitter point forming ozone and ionized air molecules which are accelerated towards the metallic grid by a potential difference between the grid and the emitter point,
• thereby creating a mass flow of filtered air drawn in by the fan through the filter expelling the filtered air through the grid.