The Honeywell F300E1027 Electronic Air Purifier is the correct system that uses the following:
The Honeywell F300E1027 20x20 Electronic Air Purifier operates with all gas, oil and electric forced warm air furnaces and air conditioning systems. This duct mounted air cleaner uses a solid state power supply that is self-regulating and maintains peak efficiency during a wide range of cell dirt loading conditions. It includes a high air flow post-filter media to enhance filtration performance.
Honeywell F300E1027 20x20 Electronic Air Purifier Specifications:
The Honeywell F300E1027 Electronic Air Purifier optimizes efficiency with airflow that captures up to 98% of airborne particles that passes through it. This electronic air cleaner helps to filter efficiency-robbing "gunk" before it coats critical parts of the system.