This publication discloses a filter unit connectable to a mobile communication device including a fan for generating an air flow inside the filter unit, electrodes covered with a photo catalytic material like TiO.sub.2 in the air flow, UV-LEDs illuminating the electrodes, and outlet for the air flow directed in direction of user of filter unit.

Filter media for an active field polarized media air cleaner includes two layers of dielectric material with a higher resistance air permeable screen sandwiched between the lower resistivity electric layers. The filter media may further include a mixed fiber filter layer having fibers from different sides of the triboelectric scale. The filter media may further include a layer of relatively higher density dielectric material followed by a layer of relatively lower density dielectric material.

Filter media for an active field polarized media air cleaner includes two layers of dielectric material with a higher resistance air permeable screen sandwiched between the lower resistivity electric layers. The filter media may further include a mixed fiber filter layer having fibers from different sides of the triboelectric scale. The filter media may further include a layer of relatively higher density dielectric material followed by a layer of relatively lower density dielectric material.

An air decontamination device (100) comprising: an input unit (102); an output unit (103); and a decontamination unit (104) coupled at a first end (122) to the input unit (102) and coupled at a second end (124) to the output unit (103). The decontamination unit (104) comprises: pairs of conducting plates (108), where one conducting plate of each pair is for being positively charged and the other conducting plate of each pair is for being negatively charged. The positively charged plate and negatively charged plate are separated to form an airflow path (212) and a 3D material (110) that is capable of being potentiated by static electric field is coupled to each side of conducting plate (108). When the static electric filed is applied, the surface moieties of the 3D material (110) are realigned to a direction of the static electric field to potentiate the antimicrobial activity of the 3D material (110) for destroying the microbes present in the received air.

Provided is a particle capturing system and a particle capturing system capable of capturing even small particles to be captured in a gas phase.

The particle capturing system according to the present technology includes: an acoustic aggregation device that aggregates particles to be captured in a gas phase by applying sound waves to the particles to be captured; and an aggregate capturing device that charges particle aggregates obtained by aggregating the particles to be captured in the gas phase and captures the particle aggregates with an electrostatic force.

Provided is a particle capturing system and a particle capturing system capable of capturing even small particles to be captured in a gas phase.

The particle capturing system according to the present technology includes: an acoustic aggregation device that aggregates particles to be captured in a gas phase by applying sound waves to the particles to be captured; and an aggregate capturing device that charges particle aggregates obtained by aggregating the particles to be captured in the gas phase and captures the particle aggregates with an electrostatic force.

A panel for accumulation of aerosol particles in an indoor environment includes a surface plate and an electrostatic collector plate coupled to the surface plate and configured to hold an electrical charge to attract and accumulate aerosol particles. The panel may include or otherwise be coupled with an activation device.

Filter media for an active field polarized media air cleaner includes two layers of dielectric material with a higher resistance air permeable screen sandwiched between the lower resistivity electric layers. The filter media may further include a mixed fiber filter layer having fibers from different sides of the triboelectric scale. The filter media may further include a layer of relatively higher density dielectric material followed by a layer of relatively lower density dielectric material.

Filter media for an active field polarized media air cleaner includes two layers of dielectric material with a higher resistance air permeable screen sandwiched between the lower resistivity electric layers. The filter media may further include a mixed fiber filter layer having fibers from different sides of the triboelectric scale. The filter media may further include a layer of relatively higher density dielectric material followed by a layer of relatively lower density dielectric material.

The present invention relates to a device for keeping room air clean and a corresponding method.