Say in findings report, the chemical contaminant that exists generally in French household is acerbity salt of formaldehyde, aldehyde, phthalein and DDVP.

调查报告中说，在法国家居中普遍存在的化学是甲醛、乙醛、酞盐和敌敌畏。

Phthalein acid anhydride Photophobic pharmaceutical and has special protective action on the ultraviolet ray. It can cure sunlight dermatitis, eczema, etc.

酞剂，对紫外线具有特殊的保护功效，可治疗日性皮炎，湿疹等。