We're planning to add an air cleaner with our soon-to-be-installed new HVAC system (Amana AMV9 furnace/Amana RCE A/C) and have read and heard many good things about the Aprilaire 5000. We would run the variable speed blower 24/7 to keep moving air through the filter. We have allergies and asthma in the family, and I know that while an air cleaner isn't the solution to that problem (we have and are taking other steps as well), it can be a very useful piece of the plan.
The contractor who will be installing the new system said he will put in an Aprilaire 5000 if I want one, but he strongly recommended the Dynamic air filter over the Aprilaire. He said he used to like the Aprilaire, but was finally convinced (by test results from an independent organization in Canada?) that it creates too much pressure drop/static pressure, and that the Dynamic is much more free-flowing, and nearly as good at filtering. I had never, in all my reading/researching, heard of Dynamic. After searching, I found both good and bad comments about Dynamic on this site, with mostly good for the Aprilaire 5000. Can anyone shed any light on which way is truly the best to go here? I'd like to come up with a definitive answer here. The Dynamic was also surprisingly pricey, considering what it is and how easily it should install (at least from what I saw on their web site).