Product review (1 stars): No Fragrance
My sense of smell is not what it used to be so take this with a grain of salt.

I have not been able to detect any fragrance from this product at all, even when using three times the recommended amount. Even when standing right in front of the air flow from the humidifier. Even after leaving home for 4 to 5 hours and returning. No fragrance.

Edit 2-17-13
I quit using this product.
This product foams a great deal. Very much like soap. In the bottle, it even smells like soap or detergent. The foaming causes my humidifier to make annoying snapping sounds, like the foam bubbles popping. Except they are louder and sharper. More like slight electrical arching. Small sparks. (It could be that the foam is getting into the fan blade, getting whacked, and making a sharp sound.) It makes me wonder if the foam is getting into the electrical components at the top of the unit. If so, this can only cause eventual failure of the humidifier due to mineral buildup on the electrical components.
This product also causes the impeller/fan to run very loud for some reason. I have to run 2 or 3 tankfuls of water in the humidifier without this product added before the impeller/fan sounds normal again.