This 2-layer activated charcoal pellet filter offers defense against unwanted pet odors that can invade your home. * Product Features: * Specifically designed to eliminate pet odors, this filter is compatible with the special pet drum HEPA filter for the medium Leitz TruSens Z-2000 air purifiers. * To keep your air purifier operating at its best, it is recommended to replace the special pet charcoal filter every 3 months (depending on use). * This charcoal filter is a replacement part of the special pet drum HEPA filter. * Compatible with the special pet drum filter for Leitz TruSens Z-2000 air purifiers. * The change indicator light turns red when the filter needs to be replaced. * For best results, it is recommended to replace the special pet charcoal filter every 3 months (depending on use). * Size: 15.94x13.2cm. * To be used with 2415129. * Ideal for pet dander and odors. * The packaging contains: 1 charcoal filter.