Just wondering, where I live is susceptible to mould, living in a well-insulated bungo pad, living in the middle of a small manicured shit green grass mote surrounded as a local authority spy hole on the tuft it's also a mould magnet. Without wanting to upset the heavy's. I'm trying to grow a CBD plant, in a 2' by 2 ' cupboard right in the middle of my gaff. Which is a really crappy spot I no, but as I'm trying to save money is it possible to reduce a 4 inch extractor down to a one inch, using a hose pipe, and the same with my extractor fan fed through the loft using one inch hose pipe and using standard bathroom extractors drilled out through the soffit.