Bissell Vacuum Exhaust HEPA Filter BS4204, Replaces F945, 3091

The Bissell BS4204 Exhaust HEPA Filter is designed to capture fine particles and restore clean exhaust airflow on compatible Bissell upright vacuums. It replaces F945 and 3091 when fitment is confirmed by the appliance model number.

Is This the Right Part?

Confirm the complete model number before ordering. Similar filters may differ in frame dimensions, media grade, or mounting tabs.

Common Symptoms

• Dusty or dirty air blowing from the exhaust port
• Reduced suction power despite a clean bag or cup
• Musty or stale odour during vacuuming
• Visible dirt or debris on the exhaust filter frame

Check Before Replacing

• Confirm the vacuum bag or dirt cup is empty and properly seated
• Inspect the pre-motor filter — a clogged pre-motor filter can mimic exhaust issues
• Check all hose connections and seals for cracks or gaps
• Verify the filter housing cover is fully latched and sealing correctly

Part Details

Installation Notes

1. Disconnect power before servicing the vacuum.
2. Open the exhaust filter cover and note the filter orientation.
3. Remove the old filter and discard — do not wash HEPA exhaust filters.
4. Compare the new filter with the original before installing.
5. Seat the new filter firmly, close the cover, and test the vacuum.

Use a qualified technician when diagnosis or installation is outside your experience.

Verified Compatible Models

3910C, 3910, 39102, 39103, 39105, 39106, 3910H, 3910T, 3990C, 6393C, 3950C, 3950D, 6390C, 3920C, 3920, 39209, 3920M, 87B4, 87B42, 87B43, 3750C, 3750D, 3750V, 3760A, 89Q9C, 18Z6, 18Z61, 89Q9, 89Q92, 89Q93, 89Q94, 89Q96, 89Q99, 89Q9D, 89Q9K, 89Q9P

Fitment reminder: Match the complete model number, including suffixes and revision digits, before ordering.