Product review (1 stars): Do not buy! New design turns everything blue.
Do NOT buy this unless you want a BLUE tinted plastic humidifier!! Loved this filter last year. Purchased it this year, and they have changed it. Now it has a thin blue layer of something in it, that turns everything blue!!! Had to throw it out within days of installing. Humidifier stained blue and water turned blue. Absolutely horrible!! So disappointed in this change as this used to be an amazing filter.