Roller blinds are made from synthetic fabrics that repel dust, especially screen and opaque fabrics. That's why we don't need to put them in the washing machine to clean them. Firstly, lower the blind until it is fully unfolded, there is no need to remove it from its supports. If it has a stain, a towel or a simple damp cloth and soap will be enough to clean it. Likewise, dust can also be removed using a vacuum or pressurized air, without scrubbing. Of course, we must not use solvents or abrasive substances that could damage the fabric coating, such as ammonia or bleach. Care should be taken with photographic blinds, as they are more delicate.