稀释通风在去除有害污染物方面的重要性不如人们普遍认为的那样重要。在不稳定的周期性漩涡中，危险物质的浓度可能是通过通风抽取的空气中浓度的数倍。因此，只有在进行了广泛的研究之后，才应该对通风进行投资，并且应该有选择地针对每个污染源。单位:SICitation:Symposium，ASHRAE交易，1987年，第93卷，pt。1，纽约州纽约市

The significance of dilution ventilation in removing noxious pollutants is less than is generally believed. In unstable and periodic vortices, the concentrations of a dangerous substance may be several times as high as in the air extracted by ventilation. For this reason, investment in ventilation should be made only after extensive studies and should be selectively directed toward each source of pollution.Units: SI