Product review (5 stars): Bought the filter replacements (1040) and was recommend that we buy this as well
Bought the filter replacements (1040) and was recommend that we buy this as well.  So glad we did.  The last time I got the filters with the BestAir 3BT-6, my filters did not last as long and I had mold on the top of the filters.  Already I have used these filters for 2 months, air smells fresh and there is NO MOLD!!!  Great product.  One capful to every gallon of water added does the trick.