| 摘要 |
PROBLEM TO BE SOLVED: To simply attach or detach an air filter without anxiety of exerting an adverse influence on an inner component such as a heat exchanger or the like and without moving an obstacle if there is a slight space even when the obstacle is placed in front of an equipment. SOLUTION: The warm air heater contains a warm air blower 7 and a heat exchanger in a long longitudinal case-like body case having a front panel 4 including an air outlet. An air suction port 5 is provided at least at one side face 1A of right or left side of the case 1. An air filter 18 is provided at an inside of the port 5, and a filter insertion port 4A capable of attaching and detaching the filter 18 is provided on the panel 4.
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