The Honeywell FC100A1029 air filter is a MERV 11 media designed to trap the majority of mold spores, pollen, and dust.
This filter media is engineered to fit in the F100F2002, F25F1000, F35F1008, F100B1016, F100F1012, F150E1026, and F200E1029 Honeywell media cabinets. The FC100A1029 media filter features a low presure drop of .23 (WC).
Honeywell recommends to replace the FC100A1029 every 9 months to ensure optimal performance. This can vary depending on your local environment.
If you have any questions regarding this product, please use the HVAC.com Contractor Directory to connect with a trusted contractor in your area.
I use this type filter in our new air conditioner in DFW, Texas area for almost a couple of years now. They're great! Except, if you live in the city, I've noticed mine needs replacing every six months or so, because they catch so much dust! So, take the whole "once a year" statement with a grain of salt, and check your filter every 4-6 months to see how dirty it really is.