The kitchen has no windows, is it okay to rely only on the range hood

It should be possible, if the air flow between the kitchens is better, it is okay not to install it, generally speaking, the range hood is a must-have in the kitchen.

No, as long as you stir-fry, it will be very dirty after a long time, so you must install it.

If the kitchen really doesn't have windows, you'll have to install a range hood. Otherwise, there is no place to remove the large amount of oil smoke generated by cooking, and it will definitely crowd into the bedroom.

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If you cook with electricity, of course not.

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