Description says it is machine washable with no further restrictions.  But the label says to use only cold water.  I specifically bought this rug because I didn't want to have to worry about washing it separate from other laundry.  Also, the label has warnings about the rug being flammable.  Well, I have a space heater in my bathroom that would be right next to where the rug would sit, so it's kind of useless to me.  I guess I'll just use it as a doormat for my front door until it wears out.