Ok, so its more of a look at how I have set my ventilation up but I hope its useful!
http://www.helenvanekdesign.co.uk/page_2368334.html
Helen x
Helen,
This is brilliant and thanks so much for sharing. I'm in the process of building an extention that will house a shared office and workshop space for my husband and myself and so ventilation is high on my priority list, (since its his lungs I'll be affecting too). Your post has given me lots of really useful info, and no doubt the link to Mike Aurelius' site should keep my husband busy with his calculator for a while ;)
Thanks again
Sam
Thanks for this Helen, great tut, very useful ;D
Mandyx