Clean Air & Floor Care
How to Size an Air Purifier for the Room You Use
Make sense of CADR, square-foot claims and air changes. Compare Coway 200M and Levoit Core 300-P examples, filter costs and realistic limitations.
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Manually reversible intake or exhaust airflow
$41.99
4 in stock
A twin window fan with two speeds, adjustable side panels and removable legs for freestanding use.
The BFW9M offers fresh-air intake or room-air exhaust depending on which side faces indoors. Direction changes by repositioning the entire fan; it is useful to decide which airflow pattern you need before securing it in the window.
For a double-hung window, remove the legs, secure the sash against the fan and extend the side panels. The manual specifies an opening at least 22½ inches wide and 11⅛ inches high. Keep the cord inside the room and check that the fan is firmly supported.
Use the window configuration or attach the legs for freestanding airflow.
The marked intake and exhaust sides help orient the fan.
| Model | BFW9M |
|---|---|
| Window width range | 22½–33 in |
| Fan speeds | 2 |
| Power cord | 6 ft |
| Dimensions, W × D × H | 22.04 × 6.3 × 11 in |
| GTIN / barcode | 810064695308 |
Product information reviewed September 27, 2026. This is researched buying guidance; Kiku Home has not hands-on tested this product for this page.
Shipping rates and available delivery methods depend on the product tier, order subtotal and destination. The exact charge is shown before order submission.
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Clean Air & Floor Care
Make sense of CADR, square-foot claims and air changes. Compare Coway 200M and Levoit Core 300-P examples, filter costs and realistic limitations.
Read the guide