Leaweod USA Bazi rakawana NFRC SOLD Door neWindows Certification, Leawanikwa zviri pamutemo zvepasi rose musuwo newindow Loward Bogrand Pamberi.
Nekuwedzera kwesimba kushomeka, iko kuvandudza kwesimba zvinodiwa nemikova nemahwindo eSimba reUS (NFRC) uye zvigadzirwa zvewindo. Mukuwedzera, nfrc chitupa inzira inodiwa kune Energy Star Certification. Chikamu chitsva, leaood ichakwikwidza nemikova yakanakisa yenyika uye mabhaisiko eWindows Windows, huya, akagadzirwa muChina.