| 摘要 |
PROBLEM TO BE SOLVED: To provide an air cleaner combining two or more pollution sensors for displaying the degree of pollution based on signals from one pollution sensor on one display section displaying the pollution degree of air at the given times. SOLUTION: The air cleaner is provided with a sensor group formed of two or more sensors sensing the degree of pollution of air, one display section for displaying the pollution degree of air and a display changeover means displaying forcibly at least for a while the pollution degree of the air based on the sensing signals from one sensor selected out of a sensor group during the air cleaning operation for adjusting the air cleaning capability based on the sensing signal output from respective sensors of the sensing group. |
