Summary
When looking for an antibacterial and germicidal air cleaner, using a specialized filter or a specially treated HEPA filter is one possible solution.
How does it work?
This technology works the same as a standard HEPA filter. It is a HEPA filter treated with antimicrobial agents to control growth of bacteria, viruses, and mold.
There are two challenges when using this type of technology for microorganism control. The first is the very small size of the "particles" and getting them to stick. The second is
"killing" the microorganism once it is trapped.
More Detail
Critical to the success of such a filter would be the purifiers ability to sufficiently contain the bacteria, viruses, and mold. The replaceable filter would need to fit tightly against any
housing that contains it. Little if any air leakage should be evident between the filter and filter housing. This may reduce air flow, but will increase the ability of the filter to collect and
trap and treat the microorganisms. Any microorganisms that slip through may be subject to the filter again and again, increasing the chance of "sticking".
There are other ways to control and remove microorganisms from the air.
See UV (Ultraviolet), Ozone, and Filterless technologies
In-Depth Reference(s)
Want to see a fun animation on the small size of microorganisms? (opens a new window) ** Make sure to increase/decrease the magnification arrows. NEW LINK REQUIRED
Buying Considerations
This feature is found mainly on high-end (expensive) air purifiers specifically designed for clean rooms, hospitals, pharmacies, and research facilities. If cost were not an option, it may
be ideal for those with serious decontamination needs or compromised immune systems. Since this method of controlling bacteria, viruses, and mold is HEPA filter related, it generally has a one
room cleaning limitation per air purifier.
Make sure to review the UV (Ultraviolet), Ozone, and Filterless technologies as they may prove more cost effective for this type of air cleaning.
Return to STEP 1 Technology from HEPA Air Purifier Technology