Products in Action

AJ Manufacturing Adds Ionization to Its HEPA Filtration Tech

HEPA Filtration

AJ Manufacturing has introduced two new options to its industry-leading Criti-Clean Ultra HEPA filtration units in order to combat airborne viruses more effectively such as SARS-CoV-2, as well as bacteria, mold and other pathogens. The new built-in modules include Ultraviolet-C (UV-C) Radiation and Needlepoint Bipolar Ionization.

The Criti-Clean Ultra is a fan-powered laminar flow HEPA filter diffuser that provides a steady stream of purified air into a room. It is available as a traditional ceiling-mounted unit, as well as a completely portable model that comes on wheels and plugs into a standard wall outlet.

“With the need for cleaner, safer indoor air to help prevent the spread of COVID-19, we’re proud to offer effective, easy-to-implement solutions for all types of buildings,” said Rob Haake, president of AJ Manufacturing. “By adding sterilization technologies to our already proven HEPA filtration units, we’ve added a second line of defense that can help schools and businesses reopen safely.”

The new UV-C Radiation module assists in sterilizing particulates in the air stream and also disinfects the HEPA filter. When microorganisms are exposed to UV-C, the light’s radiation penetrates their cell walls and disrupts the structure of their DNA to neutralize them.

The Needlepoint Bipolar Ionization module produces a stream of negative and positive ions, which attach themselves to microorganisms and renders them inactive by depriving them of hydrogen. The resulting larger clusters of particles are also more easily trapped in the HEPA filter.

All Criti-Clean Ultra units include a standard HEPA filter that traps 99.99% of particles as small as .3 micron. They can also be upgraded to ULPA filters (99.9995% at .12 micron).

In addition to standard air supply models that push clean air into a room, both the ceiling-mounted and portable Criti-Clean Ultra are also available as reverse-flow units for creating patient isolation areas. These units draw potentially contaminated air in, then exhaust clean air out of the room through ductwork.

For more information, call 816.231.5522 or visit

About AJ Manufacturing
Based in Kansas City, Missouri, AJ Manufacturing is an industry leader in custom and standard stainless steel air distribution products for critical environments – such as hospitals and pharmaceutical labs – as well as for any building where indoor air quality is a priority.