| 摘要 |
<p>A smoking room (1) in which the room air can be maintained clean by means of a purification system in such a way that the particles present in the air and tobacco smoke discharging from the smoking room will adhere to a filter unit (4) belonging to the purification system, the unit having a eurovent-classified filter EU4-EU5 (5), followed by an activated-carbon filter (7) and, for example, aluminum oxide saturated with potassium permanganate, i.e. PURAFILR filter material (8), which is a broadaction oxidizing agent and removes impurities from the air by adsorption, absorption, and chemical oxidation. Between the EU4-EU5 filter (5) and the activated-carbon filter (7) there is a second eurovent-classified filter EU9-EU10 (6), and the purification system includes an odor filter (10), which is, for example, a chemically modified copolymer of polypropylene and styrene.</p> |
