屋尘螨(house dust mite,Dermatophagoides pteronyssinus)是寄居在枕、被褥、地毯、纤维玩具等处,以人脱落的皮屑及霉菌等为生的0.3~0.4 mm的小虫。螨及其排泄物、卵具有强变应原性,是引起过敏性鼻炎、过敏性结膜炎、支气管哮喘以及过敏性皮炎的重要过敏原。长期以来曾采取多种措施来预防、治理屋尘螨。如,美国曾推出用致密织物制成的枕套、床单和被套以阻止尘螨从枕芯、棉花胎、毯穿过,从而避免人体与螨虫接触。英国曾推出Dust Mite Control和Allergen Control(图1)两种喷雾剂来控制尘螨。亦有报 House dust mite (Dermatophagoides pteronyssinus) is a 0.3 ~ 0.4 mm bug living in a pillow, a futon, a carpet, a fiber toy, etc., shedding human dander and mold. Mites and their excretions, eggs have strong allergenicity, is caused by allergic rhinitis, allergic conjunctivitis, bronchial asthma and allergic dermatitis, an important allergen. For a long time, various measures have been taken to prevent and control house dust mites. For example, the United States introduced pillowcases, sheets and quilts made of dense fabrics to prevent dust mites from passing through pillows, cotton tires and blankets, thereby avoiding contact with mites. Dust Mite Control and Allergen Control (Figure 1) have been introduced to control dust mites in the UK. Also reported