Product review (5 stars): works great
this is a nice product, it works as described.  has very little scent - a major plus for those of us that are allergic to perfumed products.  it has another benefit that is not stated - it extends the life of the filters a lot.  not sure how much because i am still using the ones i had in the humidifier when i got this,  but so far it is more than doubled the time they stay good,  over what i was able to use them in the past without this treatment.