在很多人看来,下雨时的空气往往既冷爽又清新,这时候打开窗户通风,效果犹佳。但其实,情况并不是这么简单。在如今环境污染日益严重的大形势下,即使是在下雨天开窗通风,也是很有讲究的,原因主要有以下四个:1.下雨之前,常常会伴有大风袭来,与大风一齐扑面而来的还有路旁树枝上,以及自家窗台上积蓄已久的灰尘。 For many people, the air when it rains tends to be both cool and refreshing. But actually, the situation is not that simple. In today’s increasingly serious environmental pollution situation, even in the rainy day window ventilation, is also very particular about the reasons for the following four: 1. Before the rain, often accompanied by a strong wind hit, and gale with the wind There are also roadside branches, as well as their own windowsill has long accumulated dust.