Hay fever and seasonal allergies can be triggered by breathing pollen, respirable dust, molds, spores or pet dander. Some of these particles can be as small as half of one micron in size – too small to be caught by one-inch disposable furnace filters. The Aprilaire model 5000 is the only air cleaner that removes over 98 percent of particles down to one micron in size – 24/7, 365 days a year with minimal once-a-year maintenance.
When installed properly, the blue light on the Aprilaire Model 5000 should be on whenever the HVAC fan is running. The blue light indicates the electronic components of the 5000 are working properly. If the blue light does not come on when the HVAC fan is running, we recommend you contact our service department to service the unit.