My former extractor had a motor for recycling of 400 m3, after a few days of testing the new extractor, I find it much better than the old because of these two engines. Suction is over the entire length of the grease filter, which was not the case before!
My kitchen is 15 m2 with 2.5 m ceilings, which perfectly corresponds to a recycling 500 m3, you just have to change the 2 carbon filters every 4-6 months for more intensive use. If not, check them regularly from that time for an idea of filter change case by case. It takes between 15 to 20 per filter, the first 2 are provided.
I wash the grease filter in stainless every 1 to 2 weeks (the dishwasher at 70C ° for me) so it does not become dirty and once a year in summer I gave it a good shot karcher!
I purchased the stainless steel model that was delivered well protected in terms of packaging and a blue plastic film protecting all stainless steel to avoid scratches during transport.
The hood is easy to install 2 (for one, exactly the same as the old installation), screws are provided, it is a classic 2-pin plug without grounding.
After installing the hood, the grease filter is found slightly inclined suction making more effective, I finally found, I did a test with a paper towel sheet and the back sheet immediately on the grease filter when one puts a few centimeters either 1,2 or 3rd gear.
The lighting is ample for a 60 cm plate and even a little more, the 2 bulbs are included.
In conclusion, I would say that the extractor still makes noise in 3rd speed, but this is still bearable and I am satisfied with my purchase because I find this effective hood.
For people who think installing this external recycling hood, /! \ The valve back and sheath are not in the package.