The mat looks lovely, but the musty smell is terrible! It was noticeable before the heavy plastic bag was unsealed.  Once opened, it was overwhelming. I've tried sprinkling baking powder on it, rolling it up x3 days, then vacuuming the rug thoroughly - but to no avail. The cat lay on the rug and I could smell the mustiness on her fur!!  The odor is even noticeable in rooms down the hall. Hanging it outside to air is not an option... it's the cold, rainy season. Either it fades soon or I pay for professional expensive cleaning, as recommended. This sucks.