Bionaire Electret main replacement air filter
- Fits Bionaire models BT700 and BT750, as well as Royal series 7100-1, 7170, 7170-1, 7200, 7200-1, 7210, 7210-1, 7211-1, 7220, 7221, 7221-1, 7230-1, 7232-1, 7270, 7270-1, 7300, 7300-1, 7470, 7470-1.
- For removal of dust, smoke particles, pollen, and bacteria.
- For optimum performance replace filter every 3 to 6 months.
- Filter measures 15" x 12".
This is an Aftermarket filter
