Device and method for air filtration
AssigneeClair Finance AB
InventorAnders Hedström
Life of this patent
Estimating the term…
Abstract
A method and a device for air filtration, whereby air is drawn from the surroundings of a house (2) through air filter (3, 4) comprising at least a portion of the wall of the house and is blown out to the surroundings in cleaned condition. Air is drawn through at least two different parallel coupled filter units (3, 4) which are adapted to clean the air in a corresponding number of ways. Predetermined fractions of total drawn-in air passes through the respective different filter units (3, 4) and thus are subjected to corresponding cleaning by the different filter units being adjusted to each other with respect to pressure drop. The differently cleaned fractions are mixed (6) before exhaust (5).
Claims21
Device for air filtration (1) including a house (2) having at least one part of its wall adapted to be comprised of an air filter (3,4), a suction fan (7) mounted inside the house (2) in order to draw air from the surroundings through said air filter (3,4), and at least one fan exhaust (5) for cleaned air, characterized in
- that said air filter includes at least two different parallel coupled filter units (3,4), which are adapted to clean the air in a corresponding number of different ways,
- that the different filter units (3,4) are adjusted to each other with respect to pressure drop so that in operation predetermined fractions of totally drawn-in air passes through the respective different filter units (3,4) and thus are subjected to corresponding cleaning, and
- that the device includes elements (6) for mixing the differently cleaned fractions before the exhaust (5).
Method for air filtration, whereby air is drawn from the surroundings of a house (2) through air filter (3,4) comprising at least a portion of the wall of the house and is blown out to the surroundings in cleaned condition, characterized in
- that the air is drawn through at least two different parallel coupled filter units (3,4), which are adapted to clean the air in a corresponding number of ways,
- that predetermined fractions of total drawn-in air passes through the respective different filter units (3,4) and thus are subjected to corresponding cleaning, by the different filter units being adjusted to each other with respect to pressure drop, and
- that the differently cleaned fractions are mixed (6) before exhaust (5).
Dependencies are inferred from the claim text.