Air cleaning system

• Main Author: MATSUI, SHIGEO
• Format: Patent
• Language: English; French; German
• Published: 15.12.1999
• Edition: 6
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

An air cleaning system (1) having a forced negative pressure generating function is provided for defining a space (5) in a room for utilizing the space as a smoking area or the like in which contaminated air such as smoke is prevented from flowing out of the space and is cleaned. The air cleaning system having a forced negative pressure generating function has an air curtain producing unit having a blow-out port (4) for producing air curtains (3) to surround a predetermined space, an air sucking unit having a suction port (8) open to the predetermined space defined by the air curtains for sucking air in the predetermined space, an air exhausting unit (10) having an exhaust port (9) open to the outside of the predetermined space (5) for exhausting air sucked by the air sucking means to the outside of the predetermined space (5), an air cleaner unit (11) interposed between the exhaust port (9) and the suction port (8), and an air cleaner body supported by a plurality of stems for accommodating the components. An amount of air exhausted from the exhausted port (9) is set larger than an amount of air externally involved by the air curtains from the outside of the predetermined space (5) to produce a negative pressure in the predetermined space (5) defined by the air curtains (3). In this way, the negative pressure in the predetermined space prevents contaminated air such as smoke from leaking therefrom, and the air cleaner unit (11) cleans such contaminated air before it is exhausted from the predetermined space (5).