The cooker hood sucks smoke and recirculate them back into the kitchen
Or
Th hood sucks smoke and release them outside the house through a ventilation hole which requires wall hacking upon installation of the hood?

Sorry noob question. I really never own one

there are two types
1) Recycle
"The cooker hood sucks smoke and recirculate them back into the kitchen"

2) Ducted
hood sucks smoke and release them outside the house through a ventilation hole which requires wall hacking upon installation of the hood?

seems like it beats its purpose to get rid of the smoke/smell. suck smoke, then release it back inside? hmm


https://www.google.com/search?q=ELECTROLUX+...tj4tuLFthq-tRM:


This ELECTROLUX EFC922GAK COOKER HOOD is ducted or recycle type?

This post has been edited by Mihawk7: Oct 21 2017, 12:12 PM

Ducted.

Recyclable ones use charcoal as filter.

if u r staying in a condo and they dont allow hacking then u have no choice but to get a recycle hood. Hence, get one with the best FILTRATION to prevent smell and oil getting back into the kitchen. Highly recommend Fotile EMS9021R, the best recycle hood i ever sell

the explanation is not correct. All of these modern hoods have condensation screen. The good ones have multiple of them.

The “smoke” is nothing but vaporized organic substances from your food and cooking oil. The screen will condense vaporized oil, in turn the condensed oil will capture the organic substances that creates fumes and odour. Therefore your exhaust should not have visible smoke and there will be very minor smell left at the exhaust. If you burn your food, them of course is another story.

Again, good hoods exhaust does not collect oil after say 3-5 years of heavy use. Indoor exhaust aka circulation ones will have a charcoal filter behind the condense screen to minimize the odour.


1. Pick the one with max power within your budget regardless of noise.
2. Pick the one that can turn down multiple step from the max power
3. Pick wall-mounted hoods over anything else.
3. Pick the one that has the most/most comprehensive condense screen
4. Pick the one that can self clean/ manually spray water into the fan.
5. Pick the one you think is from a reliable brand.

btw some hoods can be both use in vented or recirculate mode. you just need to buy a recirculating kit for your particular hood (if available)

Don't know if it had diffused (trickle down) to residential segment perhaps not but in commercial setups there are what's known as electrostatic precipitators (ESP) to further increase the capture rate of oil vapour and heavier substances. But most of these setup are heavy duty hence it can't be easily miniaturised. The best of what's done is ionizer assisted hoods like the Rinnai and other brands.