Ecoegg Washing Machine Cleaner removes and prevents odor-causing residue that can occur in all washers. If you have noticed a musty or mildew smell on your clothes or in your washer? Your washing machine may be the source of the smell and the ecoegg washing machine cleaner can help you clean and sanitize your machine to remove these smells. It works on both standard and high efficiency (HE) washing machines. The process to clean your machine is easy.Regular maintenance cleaning place one tablet in the empty wash basket and 2 tablets if it is the first time cleaning.Run the Normal Hot cycle or the Clean Washer cycle if your machine has one. It is recommended you clean your washing machine monthly or more frequently if needed. No worries if you clean it more frequently as the ecoegg brand is safe on septic tanks and washer components. This package contains 6 tablets.