BAPF1500CS Bionaire Electrete Filter

I have a W12 Bionaire Humidifier that requires TWO of these filter packs. Check your humidifier carefully before you order, I thought I was ordering a spare filter, but in fact required two quantity of this product. The part ordered here is for one single filter (there are two filter elements per pack).

The filters fit perfectly. They are exactly what are required, for about a month worth of humidification air filtration. If you are a little bit handy, there is an infinitely less expensive solution to this, well, I hate to say it, but, highway robbery. Purchase a standard furnace filter, 3M Filterette is a really great choice. The plastic frame of these filters pop apart fairly easily (there are a series of tabs you pry apart). Cut down the furnace filter, and place it inside the plastic frame. Be extremely careful with the sharp ends of the wire mesh on the filter.

Adding things up, four pairs of these filters per humidification season plus a wick, and this humidifier is a very expensive unit to run.