Replace microwave charcoal filter

Short answer

Once a year, open the vent grille, slide out the old charcoal filter, and snap in a replacement that matches your microwave model.

Priority: Medium
Difficulty: DIY
Time: 10 min
How often: Once a year

Why It Matters

On recirculating OTR models, the charcoal filter absorbs odors before air vents back into the kitchen. An expired filter stops working and lets smells linger.

Tools

Screwdriver

Materials

Replacement charcoal filter (matching your microwave model)

How to Do It

Confirm your microwave is an over-the-range recirculating model. If it vents to the outside, it has no charcoal filter and this task does not apply.
Locate the vent grille along the top of the microwave.
Remove the one or two screws securing the grille, then lift or swing it open.
Slide out the old charcoal filter.
Snap the replacement filter into the same position.
Reattach the grille and replace the screws.

Clean microwave grease filter Every 3 months
Clean dishwasher filter Every 3 months
Replace refrigerator water filter Twice a year

Part Of

Appliances Microwave

Last updated 24 September 2026

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