There are situations where kitchens that are part of food establishments find themselves facing a difficult situation where they have no means to dispose of air. 

The situation may become even more complicated from the way Policy P53 of the DC15 Guidelines is written. This policy discusses, not only, filtered or unfiltered kitchen extraction points when they terminate in a shaft or yard in a residential block.  My latest small publication, entitled ‘Policy P53 – Kcejjen Kummercjali’, delves deeper into these issues.