I currently have the Aprilaire model no. 401 replacement media (air cleaner model 2400) I saw your upgrade kit with a different model no. filter and wondered what the MERV rating was of each filter. Also, I had read that increasing your filters MERV rating can reduce your system’s airflow thus increasing your heating and cooling bills. Could you comment on this?
The current 401 media you’re using has a MERV rating of 10. The filter in the new upgrade kit has a MERV rating of 13.
The air flow in your system is measured by static pressure. Yes the static pressure is a little bit higher when increasing the MERV rating, but then you are also increasing the amount of particles being removed from the air stream. The upgrade kit filter may have a slight raise in the static pressure, it is able to remove about 65% more particles out of the air stream than that of the 401.
We recommend changing the new upgrade kit filter once every six months or once a year depending on the blower/fan operation of your heating and cooling system. The 401 media filter we recommend changing out every year or every other year.