Archive for April 2011

Internal and external temperatures play a role in building sciences. Temperature can determine the pressurization of the home, hence affecting the…

The building envelope refers to all external building materials, window and walls that enclose the internal living space. Homes are…

Animal dander is very much like human dandruff. Your pet sheds dead skin cells which become air borne and are easily inhaled….

Asbestos is a natural mineral fiber. There are several types of asbestos fibers. In the resent past, asbestos was added to a variety…

Aerosols are substances that are suspended in air, such as tobacco smoke particulates and the dirt and dust particles that are visible in a ray of…

Genus: Dermatophagoides; Mites are Arachnids (members of the spider family) Species: Dermatophagoides Farinae (DF) ? commonly found in North…

Environmental tobacco smoke, or ETS, contains more than 4,000 volatile organic compounds including more than 40 identified as…

Formaldehyde is an off-gassing from pressed wood products (hardwood plywood wall paneling, particleboard, fiberboard) and furniture…

Prior to 1950, paint contained as much as 50 percent lead. An estimated 57 million homes in the United States have some lead…

Ozone is a molecule composed of three atoms of oxygen. Two atoms of oxygen form the basic oxygen molecule–the oxygen we breathe…