What type of protection do disposable lab coats or Tyvek coveralls provide?

Disposable lab coats or Tyvek coveralls are specifically designed to provide a barrier that protects against biological contamination. This is particularly important in settings such as laboratories or crime scenes where exposure to pathogens, biological materials, or other contaminants poses a risk to the health and safety of personnel. These protective garments help prevent the transfer of biological agents from the environment to the skin or clothing of individuals, thereby reducing the likelihood of contamination.

While Tyvek coveralls may offer some level of resistance to certain chemicals, their primary function is to guard against biological threats. They are typically lightweight and designed to be single-use, which makes them effective for ensuring that any potential contaminants do not linger on clothing after the work is completed.

In contrast, the other options do not accurately represent the primary purpose of these garments. They are not designed for fire resistance or electrical insulation, nor are they optimized for prolonged exposure to aggressive chemicals. Thus, the best fit for the protection offered by disposable lab coats or Tyvek coveralls is against biological contamination.