Maintain the odor-filtration performance of your compatible over-the-range microwave with this microwave charcoal filter replacement. Designed for LG LMV1831BD, LMV1831SB, LMV1831SS, LMV1831ST and LMV1831SW, this filter is intended for compatible recirculating microwave ventilation systems. For LMV1831ST, the charcoal filter provides a practical replacement when the existing odor-filtration material becomes saturated after extended kitchen use. The charcoal material helps reduce smoke and unwanted cooking odors as recirculated air passes through the compatible ventilation system before returning to the kitchen. This type of filtration may also be identified as a carbon filter or carbon air filter. The replacement is also compatible with LMV1831BD and LMV1831SS, providing additional charcoal-filter replacement coverage. Compatibility additionally includes LMV1831SB and LMV1831SW, completing coverage across the listed LMV1831 family. Customers may refer to this component as a microwave charcoal filter, charcoal filter replacement, carbon filter, carbon air filter, odor filter or recirculating air filter. Before ordering, verify your microwave model and compare the dimensions, shape and mounting position of your existing charcoal filter.