This publication discloses an electrostatic filter construction (2), to be positioned in air ducts or ventilation channels, which electrostatic filter construction (2) includes a charging unit (10), which charges the particles to be filtered into a first electric potential and arranged in the filter construction (2) in the path of the air flow before filter elements (15), electrically conducting electrodes (14, 31) connected to a second electric potential different to the potential of the charged particles and set substantially parallel to the direction of the airflow, and bag shaped filter elements (15) positioned after the charging unit (10) in the path of the air flow. According to the invention each bag shaped filter element (15) has at least one designated UV- light source (6) and an element (14, 31) of photo catalytic material like TiO2.
B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
B01D 53/02 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
This publication discloses a filter unit (47) connectable to a mobile communication device (45) including a fan (51) for generating an air flow (6) inside the filter unit (47), electrodes (14, 64, 68,77) covered with a photo catalytic material like Ti02in the air flow (6), UV-LEDs (16) illuminating the electrodes (64, 68,77), and outlet (6, 53, 66) for the air flow directed in direction of user of filter unit (47).
B01D 53/02 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
According to an example aspect of the present invention, there is provided an air purifier (1), comprising a housing (2) comprising an air inlet (5) and an exhaust air exit (6), and wherein a fluid channel is formed within the housing (2) between the air inlet and the exhaust air exit, and an electrostatic filter (10) construction within the housing (2), the electrostatic filter (10) construction including a charging unit (14), which charges the particles to be filtered into a first electric potential and arranged in the filter construction (10) in the path of the air flow before filter elements, electrically conducting electrodes connected to a second electric potential different to the potential of the charged particles and set substantially parallel to the direction of the airflow, and filter elements positioned after the charging unit (14) in the path of the air flow.
B03C 3/47 - Collecting-electrodes flat, e.g. plates, discs, gratings
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 53/02 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
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