I don't know that they cause germs - haven't heard that before. I just wash ours out with hot water but it is an older style one. I think they are great though, they definately helped Izzy when she was sick and the Dr and pharmacist both recommended it. We have ducted heating and the air is very dry so other than tipping water down the vents that can take it I use the vaporiser at the hint of a runny nose.
JMO hun, I think they are fine. Could you have just been more aware of the smell because of what the MCHN said?


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