Catch The Microscopic Dust Particles
With an air bear furnace filter, you stand a better chance in catching all of the microscopic dust particles that are floating through the air at any given time. Without these types of filters, your central heating and air conditioning unit only has the capacity to catch the large particles and does not do a very good job within that process. So, your best bet would be to just go with the best in the beginning and that way, you have nothing to worry about.
