I have COPD (emphysema/asthma) and after years of suffering it has recently been discovered that I am highly allergic to aspergillus. Things now seem to be making sense on when I am ill. On Christmas Day this year I was admitted to ICU with respiratory failure. My doctors are thinking of referring me to Manchester. In the meantime I need to take all preventative steps I can. My kitchen is very old (no backs on units and mould inside), but obviously this building work will cause problems - but needs to be done and I cannot move out while this is being done. I am thinking of buying an air purifier to remove mould. Initial reviews seem excellent but I don't want to spend money on things which don't work. I know it's not possible to endorse/not endorse products but can anyone tell me if there is any evidence-based information on if they work? If so, what do I look out for? I am particularly thinking of 'Airfree' purifiers (if I can say that). Thanks for any help - I am now desperate to improve my quality of life.