| 摘要 |
PURPOSE:To extend a period until oil is dripped from a primary filter and prevent powder from blowing from an air blowing port by a method wherein oil mists having adhering power are collected by the primary filter and powder having no adhering power is collected by a secondary filter. CONSTITUTION:A machine body 1 of an air conditioner is installed in the ceiling 17 of a kitchen for baking bread so as to perform a cooling or a heating operation. Oil mists and powder floating within the kitchen are sucked through an air suction port 2 together with interior air, the oil mists having adhering power are collected by a rough primary filter 10 and powder having no adhering power is collected by a fine secondary filter 11. After this operation, they are forcedly fed by an air blower 9, cooled by a heat exchanger 6 during cooling operation and heated during heating operation and finally blown from an air blowing port 3. The primary filter 10 is darkened with oil mists and the secondary filter 11 is made white by adhering powder. Then, the filters are removed from inside a grill frame 12. The primary filter 10 is a disposable one, and so, if it is solid, it is replaced with a new one. |
