Product review (1 stars): Filters only last 3 weeks
I've had my MoistAir Humidifier for a number of years and have purchased many replacement filters.  I have never come across a filter that only lasts 3 weeks until I purchased two of these filters.  I have soft water so that is not an issue.  These are inferior filters.  There are better sources through Amazon where you can buy quality OEM or equivalent filters.