The National Academies Press is a great source of in-depth reports on many issues. Many of the reports can be downloaded as free PDF files. The pre-publications of the report Certifying Personal Protective Technologies: Improving Worker Safety advances the very broad area of certification to ensure a minimum level of protection […]
Monthly Archives: November 2010
Carbon dioxide concentrations are a good indicator of room ventilation. Measurements and observations done in 1893 tally well with current IAQ recommendations.