Two layers of curtains: light is always filtered once

A French sheer curtain. There are two layers on the window: the inner layer is sheer or lace, which still allows light through when drawn during the day, blurring the outlines outside; the outer layer is plain linen or silk, draped from the ceiling to the floor. Light is thus always filtered once. Avoid: using only a single layer of curtains, having obvious patterns on the sheer curtain, using opaque thick fabric as the inner layer, making the curtain length just reach the floor.

Translated from Chinese by AI.

一層薄紗的法式窗簾。窗上有兩層:內層是薄紗或蕾絲,白天拉上仍然透光,把外面的輪廓變成模糊的形;外層是素色的亞麻或絲質,從天花垂到地面。光因此永遠是被過濾過一次的。避免:只使用單層窗簾、讓紗簾有明顯的圖案、使用遮光的厚布當內層、把窗簾的長度做到剛好及地。