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514 Bionaire® Foam Pre-Filter
Bionaire® foam replacement pre-filter
This is an Aftermarket filter
- Fits Bionaire® models BT400, BT500, BT500s, and BT501.
- Extends the life of HEPA and carbon filters.
- removes large particulates from the air.
- For optimum performance, replace filter every 3 to 6 months.
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