Parkinson Cowan AHOOD B is a cooker hood designed for domestic use only. It can be used to recirculate air or extract air. The hood has two exhaust outlets, one on the top and one at the rear. To connect a ducting hose, fit the coupling ring in the exhaust outlet selected. Use the round black cover to close the unused outlet. The hood is supplied with a collar so that ducting of 100mm can be used. This collar has to be fitted on the coupling ring. The grease filter is fitted to the inside of the lower grill panel. The function of this filter is to trap grease particles.