The OzzyMat The Key to the SmartWasher System The OzzyMat is designed to introduce microbes called Ozzys into the SmartWasher System. It must be placed on the mat support white side up. The OzzyMat helps reduce excess clogging during its 30 day or 1 month use. It must be changed monthly to help keep the microbe colony healthy and keep your SmartWasher working at peak performance. The FL-4 Multi-Layer OzzyMat The Recommended Filter The OzzyMat FL-4 has 4 white layers and 1 blue layer. The white layers on the mat trap any particulate larger than 50 microns and should be peeled at least once a week for optimum performance. The blue layer is the support structure that contains the microbes and delivers them into the system. These microbes migrate from the OzzyMat into the Ozzy Juice located in your SmartWasher tank and break down organic waste.