We were on Freedom last month and did not find any on board. I was disappointed not to find the cruise line using them as a proactive measure, but also heard of no one getting ill. They are a very good idea for all ships to use in my opinion. The fire department I work for installed them in every station for Members to use upon return from medical calls prior to going back into the living areas of the firehouse.
Hope this answers your questions...Steve
I'm Steve Cooper. I love Royal Caribbean, and recently discovered NCL and love them too. I've also cruised Princess and HAL.
NCL Pearl Alaska Glacier Bay
RCI Liberty of the Seas E. Caribbean