I crossed my fingers when I bought this, as I was looking for a blackout curtain that actually lived up to its description as a noise dampener and that could be used in lieu of a door to cover my super small washer/dryer space. Of course no curtain will be able to block out noise completely, but I was very happy to find that this one made a true difference. It is advertised as blocking up to 60-ish % of noise, and this literally sounds right to me. I bought this on sale for around $24, which felt very reasonable.