Product review (4 stars): THIS SOLUTION HAS A LOWER CONCENTRATION OF THE ACTIVE INGREDIENT BENZALKONIUM CHLORIDE-AN EYE IRRITANT
REVIEW OF: SUNBEAM HUMIDIFIER BACTERIOSTAT SOLUTION 32 OZ, SOL2015B-U

I'd like to thank Amazon for the opportunity to review this cool mist humidifier cleaning solution that I received as a complimentary sample in exchange for this honest review.

It is necessary to clean the cool mist humidifier regularly to prevent microbial overgrowth of the humidifier.  You certainly do not want to see mold!

The active ingredient is Benzalkonium chloride (dimethyl benzyl ammonium chloride). .This is the same ingredient that you'll find in drops for the eyes, ears and nose, nasal sprays, shampoos and lotions. An organic salt, Benzalkonium chloride, is present because of its helpful bactericidal/microbicidal action. Active against bacteria, some viruses, fungi, and protozoa, this is helpful to maintain cleanliness of your filter-type humidifier.

Only a small amount is needed and this solution makes the job of cleaning the filter quicker and easier.

No scent and no odor helps you to keep the moist air coming from your filter clean, non-allergenic, and non-irritating to your nasal and oral passages.

The cost of this solution compares favorably to higher priced alternatives and ingredients are the same, however in less concentration than most others, eg. Holmes.  As cleanliness of the filter is of paramount importance, it may be better to have a higher concentration of Benzalkonium chloride to preserve the life of your filter/wick.  However, as Benzalkonium chloride is known to be a human skin and severe eye irritant, a lower concentration may be helpful to you.

Will give it a try as the weather gets dryer and update as the varying concentrations are compared.

4 stars for the lower concentration of Benzalkonium Chloride