My partner and I have been considering buying an air purifier or ioniser. We have found that our dehumidifier has an ioniser and although this may be all in my mind I thought I felt better when we used this during the winter. Does anyone else use something like this and if so what do you use and what do you consider to be the best type and how best to use it please. I should add that both of us have bronchiectasis and I have asthma and at present I am awaiting a lung biopsy as a small lesion has been found in my left lung but despite having scans has not been dignosed yet. I look forward to receiving your replies.