Using this makeup sponge is easy. If you're using it for dry powder, just dip it into the powder and gently pat it onto your skin. For wet powder or foundation, dampen the sponge first. Make sure to squeeze out any excess water so it's just slightly moist. Then, use it to apply the product evenly. When using it as a makeup remover, pour some makeup remover on the sponge and gently wipe your face. As for maintenance, wash the sponge regularly with mild soap and warm water. Squeeze out the dirt and let it air dry completely before using it again. Avoid using harsh chemicals or wringing it too hard, as this can damage the sponge. And remember, keep it in a clean and dry place when not in use.