Hi, I would be grateful for any advice. I had new underlay (rubber based) and carpets installed in June. There has been a strong unpleasant smell since then. I took advice that it would dissipate in time (and to give it at least a couple of months) and followed all the advice re opening windows and doors. While it has improved a little it has not improved significantly. The business owner came to assess and in their view it is likely the underlay and should continue to improve (and therefore there is no issue - except perhaps my psychological one! ). While I do pick up on smells quite easily I've had several carpets over the course of my lifetime and I've not come across this before. I'm not sure what to do next and would appreciate any feedback offered. I do understand about 'offgassing' but it's been several weeks and I'm concerned it isn't going to improve any further.