| 摘要 |
A kind of economical household ventilator consists of the housing and blower. On the housing there are air inlets and exits. There are several air exits with different directions distributed all over the housing. The air inlets are located on the top or/and bottom of the housing respectively. There are air brattices arranged in air exits which can be used for adjusting the air directions or the air exits can be fixed with air brattices for adjusting the air directions. Inside the machine or each air exit, an electrical heating part can be arranged allowing air flowing through so that it can supply warm air or conduct ventilation for general purpose depending on the requirements.
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