| 摘要 |
The invention resides in a purification and sterilization device having an air inlet (102, 202) and an air outlet (103, 203), said inlet and outlet joined by an air duct, said air duct provided with at least one filter (110, 210) through which essentially all air entering the device has to pass, means (125, 132, 232) provided for mixing ozone into a liquid, preferably water, thereby forming an ozone-water solution at least part of said ozone-water solution recirculated in the device, the filter (110, 210) adapted to be soaked or wetted in or by said solution. The invention also resides in a mixing means for use with the purification and sterilization device. The invention also resides in a method for purification and sterilization of a gas comprising the following steps: providing an ozone-water solution having controlled amounts of ozone therein, by dissolving freshly prepared ozone in a recirculated ozone-water solution in dependence of the ozone-concentration of said recirculated ozone-water solution; said dissolving accomplished by feeding said freshly prepared ozone through micro-porous nozzle arranged in said recirculated solution; withdrawing ozone-water solution from said ozone-water solution having controlled amounts of ozone therein; wetting or soaking one or more filters through which gas is made to pass, thereby forcing said gas in contact with the ozone-water solution. |
