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Dynamic Commercial News
January 2014 
Inside This Issue
How Clean is Your Outdoor Air?
Announcement from WHO
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IAQ Links
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In our last newsletter we looked at evidence that better filtration can be more effective than increasing ventilation air. This month we look at whether or not the outdoor ventilation is clean to begin with. As you will see, there are an ever growing number of reasons to specify Dynamic Air Cleaners to keep our indoor environment safe and clean.


Carl Mitchell, Vice-President Sales



How Clean Is Your Outdoor Air?



The Clean Air Act, last amended in 1990, is the comprehensive federal law that regulates air emissions from stationary and mobile sources.  These pollution limits are called National Ambient Air Quality Standards (NAAQS). The Clean Air Act requires the EPA to set NAAQS for pollutants considered harmful to public health and the environment. The standards track six common "criteria" pollutants: particulate matter (PM), ground-level ozone (O3), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen oxides (NO2) and lead (Pb).

When an area's monitored air pollution exceeds the NAAQS a certain number of times, EPA designates it as a "nonattainment" area. This designation is determined by a formula that uses the number of times the standard is exceeded each year. The formula includes three years of data to ensure that an area isn't designated as nonattainment because of one unusual year and the law also includes a periodic review process.

A "nonattainment" classification means that air quality in a particular region does not meet (or "attain") the federal air quality standard. This information is maintained by the EPA in the form of a
map that is updated regularly (Figure 1):  

Figure 1 - In the colored areas it makes sense to use Dynamic Air Cleaners to clean both the indoor air and outdoor air, reduce the volume of outside air, and use the savings in energy and maintenance costs to pay for the air cleaning systems.


As you can see, the areas where outdoor air does meet the federal standard are essentially limited to areas where you don't have population centers. This leaves us with a situation whereby building codes require ventilation air to meet their standard, but the ventilation air is bad, according to the EPA.


So what's the role of air cleaning? As per ASHRAE Standard 62.1-2012, when the outdoor air contains contaminants, it is a requirement that the air be cleaned before bringing it indoors. If that is the case and you are cleaning the fresh air, it makes sense to size your filtration section to clean recirculated indoor air in addition to the outdoor ventilation air.  


The Dynamic V8 Air Cleaning System provides the MERV13-15+ filtration which is necessary to remove the ultrafine particles produced by automobile exhaust in urban environments. With its low static pressure resistance, the Dynamic V8 consumes about a third of the fan energy of MERV13 passive filters. These savings become even greater when factoring in the Dynamic V8 service and maintenance intervals which are measured in years instead of months.


Dynamic V8 Air Cleaning Systems have been used successfully in these applications for many years, including the ASHRAE Headquarters living lab in Atlanta, Georgia where indoor air quality and outdoor air quality is monitored real-time. Measurements for particles and VOCs over the last five plus years have shown that the quality of indoor air has been consistently better than the outdoor air.


Further, if the outdoor air is dirty, it may make sense to look at applying the IAQ Procedure of AHSRAE 62. Here, a building can take credit for things like low-emitting materials, air cleaning and good airflow patterns to reduce outdoor air levels. This not only helps to ensure IAQ, but helps minimize energy and operating costs.


Let Dynamic Air Quality Solutions help you achieve exceptional air quality, regardless of where you might be located.



Recent Announcement from World Health Organization

Outdoor Pollution s Carcinogenic


The specialized cancer agency of the World Health Organization, the International Agency for Research on Cancer (IARC), announced last month that it has classified outdoor air pollution as carcinogenic to humans. After thoroughly reviewing the latest available scientific literature, the world's leading experts convened by the IARC Monographs Programme concluded that there is sufficient evidence that exposure to outdoor air pollution causes lung cancer.


They also noted a positive association with an increased risk of bladder cancer. Particulate matter, a major component of outdoor air pollution, was evaluated separately and was also classified as carcinogenic to humans. Click here to read the entire press release.



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About Dynamic Air Quality Solutions
Since 1982, Dynamic Air Quality Solutions' mission to its customers has been to develop and bring to market innovative, technologically advanced and affordable solutions to help clients optimize air quality, energy consumption, and the environment. For more information, visit our website at www.DynamicAQS.com/commercial/.