美國國家環境保護局的資料
http://www.epa.gov/pesticides/facts...d-clothing.html

Clothing Factory-Treated with Permethrin
October 1, 2012

這一篇是有關有驅蟲作用的成衣，不是洗衣精。

Currently, the only insect repellent used for factory treatment of clothing is permethrin.

唯一可用在衣服的驅蟲劑是百滅寧。不知其它也可防螨用的是什麼？

Permethrin has been registered since 1979 and was first registered in 1990 for use as a repellent on clothing by the military.

1979 美軍就在用了。

All exposure scenarios showed that permethrin factory-treated clothing is unlikely to pose any significant acute or chronic hazard to people wearing the clothing.

每天穿不會有明顯急性或慢性的危害。

The amount of permethrin allowed in clothing is very low, and scientific studies indicate that human exposure resulting from wearing permethrin factory-treated clothing also is low. Available data show that permethrin is poorly absorbed through the skin.

允許用在衣服上的劑量很低。經由皮膚的吸收很差。

Based on our review of scientific studies, there is no evidence of reproductive or developmental effects to mother and child following exposure to permethrin.

母親和小孩用也沒有證據顯示會影響生育和發育。

it is required to be marketed with a pesticide use label.
不過處理過的衣服要有防蟲用的標示。

Permethrin repellent products used for factory-treatment of clothing or as spray-ons for clothing are not to be applied to certain clothing such as underwear. For this reason, the label instructs consumers to wash permethrin-treated clothing separately from other non-treated clothing.

通常是用在外衣上，內衣褲不用。所以建議分開洗。