Machine wash the bathroom rugs in water less than 86℉ (30℃) and tumble dry on low or air dry.
Use mild detergent. Do not bleach, do not dry clean, and do not iron.
Putting them in mesh laundry bags when machine washing will protect them better for longer service life.
Low-power washing machines may not be able to bear the weight of large size mat, it can be directly washed with a hose and air dry.
Microfiber will be flattened during storage and transportation when you receive the rug, but it only takes a few gentle shakes to restore its fluffiness.