Web Links Here are some websites we recommend. Wikipedia The free encyclopedia that anyone can edit. Environmental Protection Agency This link goes directly to the Mold Search Page Indoor Air Quality Association Links you to the premier Air Quality Association. We are members of this organization. American Industrial Hygiene Association The American Industrial Hygiene Association (AIHA®) is one of the largest international associations serving the needs of occupational and environmental health professionals practicing industrial hygiene in industry, government, labor, academic institutions, and independent organizations.