Can you fit an extractor fan in the same room as a Separett Tiny or Villa?

Ideally no. The reason is that bathroom extractor fans remove a large volume of air and could, in some circumstances, overpower the fan in the toilet, drawing odours out. If the toilet is in a fairly large room, this might not be a problem.

If building regulations are applicable, and you must have an extractor van, keep the ‘on’ time for the extractor to a minimum.