Recent studies indicate the quality of air expelled from older heating, ventilation and air conditioning (HVAC) systems do not meet Indoor Air Quality (IAQ) requirements. In addition, various regulatory agencies have raised new concerns regarding the presence of airborne mold species and other contaminants. After much study, the Joint Commission on Accreditation of Healthcare Organizations (JCAHO), along with state Departments of Health, and maintenance departments at medical and industrial facilities, have determined that the primary source of air quality deterioration is the presence of bio-contaminants growing within condensate drain pans.
1. Threat to Public Health
Legionnaires’ Disease
Legionnaires' disease occurs most often in the warmest months of the year -- the time when air conditioning systems are used most often. While the growth rate of the legionella bacteria is relatively low in water temperatures of 60 to 65 degrees Fahrenheit, the presence of iron (e.g., rusty condensate pans) may increase the growth rate by more than 100 times 1. It is estimated that as many 18,000 people contract Legionnaires' disease in the United States each year, with 5 to 30 percent of those cases proving fatal.
Sick Building Syndrome
"Sick building syndrome" (SBS) has become a common phrase. As evidenced by sensational stories in The New York Times Magazine, regional newspapers, television specials on “48 Hours” and “The Today Show,” toxic mold is an emotionally charged issue that has created a public frenzy over its potential health impact. The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) indicates that 50 percent of all cases of poor IAQ result from poorly designed or fitted HVAC systems.
2. Potential Liability
A major reason toxic mold has become one of the hottest topics in the media and the insurance industry is a familiar one – money. Juries have been siding with plaintiffs in Indoor Air Quality lawsuits, often awarding multi-million dollar judgments.
3. Operational Disruption
Today’s stricter air quality standards place the health of people ahead of economic and operational concerns of building owners. The presence of toxic mold has led to the closure of office buildings, schools, hospitals and other facilities.
4. The Economic Ripple Effect
In addition to the insurance crisis, air quality issues create concerns for risk managers ranging from damage claims to workers’ compensation, as well as the financial repercussions from a loss of public trust. Furthermore, extended damage from corrosion can shorten the life of equipment, at a cost of tens of thousands of dollars.
