Meaco HEPA Filter Low Energy 12L 3pcs. HEPA filter for Meaco 12L low energy dehumidifier provides excellent air purification. If you suffer from allergic reactions to mold spores, pollen, dust, pet dander, dust mites, etc. then a HEPA filter will help. These are True HEPA filters which means they meet tough international standards to ensure they capture 99.97% of particles that have a size of 0.3 µm or larger, meeting class E11. These are the best filters for cleaning the air that you can currently get for a dehumidifier. The use of a HEPA filter affects the performance of the dehumidifier as follows: 11% less dehumidification and 7% increase in power consumption. But even with this reduction in performance, the Platinum line of dehumidifiers still outperforms its competitors. The filters come in a pack of three. They need to be replaced when they change color from white to gray/dark gray and last about 3 months. The HEPA filter must be used with the standard dust filter and not as an alternative. A pack of 3 HEPA filters to be used with the Meaco 12L Low Energy Dehumidifier