Air Cleaner Sizing and Selection
The best size air cleaner is the largest that will fit. The larger the air cleaner, the greater capacity for particulate. This reduces the need to clean as often. The larger air cleaner will also have a slower air velocity that will increase the cleaning performance.
Fitting the air cleaner to the current duct work can be a primary consideration. Not recommended is using a small F300 for a large house. The F300 are sized large, medium and small. The F300A2012 is an uncommon half size used in custom designs.
The large F300E1035 (2000 cfm) are sized for a large house with a single large heating and or AC system. The F300E1019 F300E1027 (1400 cfm) fit a medium size house. The F300E1001 (1200 cfm) fit a condo or small house.
Running the furnace-AC blower on constant is recommended. Most thermostats have an Auto-On switch. Setting the switch to ON will keep the blower running and purifying the air. The more dust collected by the air cleaner results in less dust on the furniture.
The F300 has an air resistance similar to the standard 1" filter. Thus an F300 of the same size as the heating systems 1" filter is a good reference. Review the F300 installation instructions.
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