Recirculation hood is used when it is not possible to duct out through an outside wall. It pushes the air through the filters to remove any cooking smoke before the air is recirculated back into your kitchen. FOTILE recirculation range hood EMS9021-R has an oil filtration rate of 97.4% which makes it the best recirculation hood for your condominium. Product Link: http://fotile.com.my/products/EMS9021-R.html #FOTILEMalaysia #Recirculation #RangeHood | FOTILE Malaysia