In (b)(6), i bought a virtu-clean cpap cleaner that uses ozone to clean my cpap device.I have used it daily since then.I have it set up in the garage, a room that is only occasionally visited and mostly not when the device is running.I ordinarily clean it many hours before i use the cpap device and run the cpap device for several minutes before i start using it.Still, the ozone odor is noticeable when i first put the cpap device on at night.For the past two weeks, i have been experiencing a slight, nonproductive but persistent cough that comes and goes throughout the day.(it does not seem to bother me during sleep when i am wearing the cpap mask.) i have no fever or other symptoms but it is concerning enough that i had a covid19 test yesterday that proved negative.In looking for possible causes, i came upon an fda press release indicating that ozone cpap cleaners have been known to cause coughing and encouraging the reporting that i am doing here.This just ruled out covid19 as the cause of my cough.Fda safety report id# (b)(4).
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