AIR PURIFIER WHICH AN INFLOW PURIFIES THE OUTDOOR AIR WITH A COMPULSION. RAISES THE INDOOR AIR PRESSURE

摘要

The present invention relates to an air purifier to raise indoor air pressure with a forcible intake and purification of outdoor air, comprising: a filter case placed on an outer wall of a building, on one side of which a first air inlet pipe is installed; a high pressure air pump which has a first sensor arranged on a mouth of the first air inlet pipe; a second air inlet pipe connected to one side of the filter case wherein a first air purifying filter and a first air flow control valve are installed; a third air inlet pipe on one end of which a second air purifying filter is installed and wherein a second air flow control valve is installed in a rear side of the second air purifying filter; a silencer comprising a plurality of partitions installed inside the first to third air inlet pipes at regular intervals, and through-holes passing through the partitions; and one or more second sensors which are installed in an indoor space of the building to automatically monitor indoor air pressure, to transmit a signal to the first sensor, and to control air pressure of the high pressure air pump. Therefore, the air purifier to raise indoor air pressure with the forcible intake and purification of outdoor air keeps indoor air clean by preventing outdoor air having an air pressure lower than the same of the indoor air from being carried up into the indoor space by indoor air pressure through a crack in a door and a window.