This is a series of white papers covering the topic of infection control in buildings through enhanced HVAC strategies. The current world pandemic situation has brought up the question: "What can we do to improve the air quality and reduce the possibility of disease spread in our facilities and buildings?".
There are a vast array of available methods and technologies that can aid in the process of improving the air inside the occupied space and preventing infection. Air cleaning may be done as part of the HVAC system through enhanced filtration, fresh air regulation and sterilization, or by using in room devices, either permanent or temporary portable units.
Some of these technologies are time tested and proven in the medical and biotech fields. Some are promising new technologies that may prove to be effective in the long run, however, they have not been in use long enough to clearly identify their effectiveness. Some technologies are not proven to be effective at all at controlling infection agents. This series of white papers will try to separate the fact from the fiction and provide reliable guidance on how to effectively mitigate the spread of infection in buildings.
If you have any questions or would like more information on any of these topics, please feel free to contact us.
Enhanced HVAC Infection Control - White Paper Series:
1. Methods & Technologies:
In this white paper we discuss various types of air filtration/sterilization methods and room devices that are available to improve air quality and reduce the spread of infectious disease in buildings using existing HVAC systems.
In this white paper, we will discuss the various performance characteristics of HVAC filters with the goal making an informed decision as to the right type of filter to use in a particular HVAC system application.
3. Ultraviolet Disinfection:
In this white paper we discuss the different Germicidal UV (GUV) systems currently available for commercial, industrial and residential HVAC applications. GUV is a time-tested technology that has been used in hospital, pharmaceutical and clean room applications for decades. It is proven to be effective at killing viruses, bacteria and fungual organisms, as long as those agents can be directly exposed to UV rays of sufficient power and/or duration.
In addition to the mechanical filtration and UV-C disinfection methods discussed in our previous white papers, there are a number of other technologies commercially available that claim to disinfect the air or improve the overall air quality. In this white paper we look at one category of those technologies - ionization based air purification systems.
5. Dilution Ventilation:
In our previous white papers on infection control through advanced HVAC strategies, we have focused on the removal of infectious particles from the airstream using various mechanical, photochemical or electronic means. This article will focus on the reduction of the concentration of infectious (and non-infectious) particles in the building through dilution ventilation.
Next in our ongoing series of white papers on Enhanced HVAC Infection Control, we examine one of the most significant factors affecting the spread of disease within buildings - humidity.
7. Ventilation Effectiveness:
In this paper we will discuss how well we can expect the outdoor air to mix with the air in the rooms and the likelihood that any airborne contaminates in the rooms will be captured and returned to the HVAC equipment for treatment or removal.
8. Covered Malls:
In this white paper we will discuss the unique characteristics of the HVAC systems in covered mall buildings to see how well they can be adapted to the best recommendations and guidelines regarding indoor air quality and infection control.