Does anyone advise desktop humidifiers for asthmatics in open plan offices? Any evidence that they do any good? Are mold spores likely to develop and create additional risks if not properly maintained? Would anyone advise de-humidifiers? Some of the buildings have air conditioning some do not. I am looking for evidence to support my hypothesis that they are no use - if you can point me towards it. The Asthma Society lean towards de-humidifiers if the asthma is triggered by dust but not sure about need for that either in open plan office. (I have recommended environmental humidity checks.) many thanks Mandy Brennan ~~~~~~~~~~~~~~~ Please remove this footer before replying. For list archives and documents, go to http://www.jiscmail.ac.uk/lists/occ-health.html for list archives For jobs in Occupational Health, go to http://uk.groups.yahoo.com/group/OHJobs/