Nitori Blackout Grade 1, Heat-Blocking, Soundproof Curtains Dina White 100 x 170 cm Set of 2 With a blackout rate of 100%, it performed exceptionally well, with barely any light detectable in testing. It accurately addresses the need to completely block out light, making it particularly recommended for those who don't want to be woken up by the morning sun or who want to sleep soundly during the day. It offers reassuring performance for those who prioritize blackout functionality. The heat blocking rate is 58.02%, which should help to some extent in suppressing temperature rise. While not the highest class, it's a level that contributes to improved air conditioning efficiency. In soundproofing tests, it recorded a top-class 11.75dB cut. This will help create a space where noise is less noticeable. With its strong blackout performance as its core, it also has well-balanced heat-blocking and soundproofing functions, making it especially recommended for those who are sensitive to light in the morning or during the day, or those who seek a calm space. It's perfect for creating a quiet and comfortable environment. *There may be some scratches or stains on the packaging. Immediate purchase is welcome.