Haier IT9001, Service Manual

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If you do not have an outlet for exhausting air, the exhaust hose
(part [10]) is not required, and the installation is similar to the one
shown in the section "Installation (for venting outside)".
Air is vented back into the kitchen through the opening of the
cooker hood, this circulating air mode requires the use of the
carbon filter (part [11]) to remove odors.
Attention -
Remove the plastic packaging bag from the carbon
filter before use. For venting outside, carbon filter is not required.
To ensure best performance of your cooker hood, you should replace the
carbon filter every 2~3 months, depending on the frequency of use.
Check with your locad retailer or dealer to buy new carbon
filters for replacement.
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