A trained skilled service engineer from the authorized service center should be call to install the chimney.
No, but it is always advisable as the efficiency and suction capacity of the kitchen hood/chimney increase and there is no recurring cost of filters.
A kitchen hood chimney is fitted right above the cooking appliance. When switched “on” it sucks all the smoke, oil, spices etc generated during cooking. All smokes, oils spices etc gets trapped into filters & odor/smoke is re-circulated into kitchen. In case of ducting mode they are thrown out of room through duct.
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