How do I clean the PPM3321 massage shawl?

The cloth cover of the PPM3321 massage shawl cannot be removed.
Please remove the dust from the cloth cover of the PPM3321 massage shawl with a vacuum cleaner and wipe off the dirt from the surface with a clean rag. Where the dirt accumulates in relatively deep places, please dampen the cloth with a neutral detergent and wipe gently.
Please make sure that no water enters the product, and do not put the product in direct sunlight or in places with high levels of humidity after use. If the product is left unused for a long time, please remember to cover it with a cloth after removing dirt so as to avoid dust build-up.