California department of health care access and information

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AJ Manufacturing’s Cleanroom Fan Filter Units Are Now Certified for Seismic Zones

At AJ Manufacturing, our mission is to ensure that your critical environment can meet or exceed requirements, standards, and regulations with the use of our products. It is of the utmost importance to us that updates and innovations within your industry can be matched with superior custom HVAC products when you need them, whether that’s our custom-size return air grilles or any of our superior air distribution products.

If you are considering how your critical environment can meet ASHRAE Standard 62.1 or 170 criteria or the Department of Energy’s energy efficiency ratios, AJ Manufacturing has been researching, engineering, and manufacturing behind the scenes to ensure you have an informed partner for your air distribution products.

Recently, AJ Manufacturing was proud to announce that several fan filter units for cleanrooms are now certified by California’s Department of Health Care Access and Information for their ability to maintain service in seismic zones. This certification confirms that your critical environment not only meets key benchmarks for indoor air quality (IAQ), energy efficiency, and more, but also ensures protection of this valuable asset during seismic activity.

What Does HCAI Certification Mean for Critical Environments and Cleanroom Fan Filter Units?

When we think of how important it is for fan filter units in cleanrooms to operate under any condition, we are reminded of our work to develop products that now include Native BACnet as a standard feature on our Criti-Clean Fan Filter Units. In the event of a cybersecurity breach, we’ve made it possible to protect your critical environment, so that it can continue to function – much like other necessary systems in a hospital.

Similarly, HCAI Certification for Seismic Compliance requires that hospital buildings should be “reasonably capable” of providing necessary healthcare services after an earthquake. To achieve certification from HCAI, equipment must undergo a strict testing procedure to demonstrate its viability. This video demonstrates how our products hold up against a “shake test” that simulates seismic activity. In the video, it becomes clear that our fan filter units for cleanrooms are up to the challenge.

When our customers are building new healthcare facilities, the fact that our HVAC products have been pre-approved for their use in seismic zones is advantageous, as this pre-approval leads to faster overall approval times and code compliance.

AJ Manufacturing now has four fan filter units that are certified by the HCAI for use in environments with seismic activity:

  • 24” x 24” Fan Filter Unit
  • 36” x 24” Fan Filter Unit
  • 48” x 24” Fan Filter Unit
  • 24” x 24” Reverse Flow FFU

You can view our pre-approval documentation here, through the HCAI website.

Where in the U.S. Could Seismic Activity Affect a Critical Environment’s HVAC Products?

California’s Department of Healthcare Access and Information requires seismic-activity certification for the state’s hospitals, and the state often leads the way in earthquake safety measures that influence standards in other regions.

In fact, a map from the U.S. Geological Survey from Michigan Tech’s Seismology department demonstrates the prevalence of seismic activity outside of California. Seismic activity is more common than we tend to think, making this an additional consideration for hospitals that run essential services they can’t afford to have disrupted by unexpected natural phenomena.

If your organization relies on fan filter units for hospital cleanrooms or operates a critical environment vulnerable to seismic disruptions, you benefit from working with a leading air distribution product manufacturer that builds durable, resilient, and code-certified custom HVAC products.

Why Cleanroom Fan Filter Units Are Important for Your Critical Environment

Fan filter units for your cleanrooms are essential tools to ensure your indoor air quality meets regulations and standards, and that you can provide crucial healthcare services while preventing airborne infection.

AJ Manufacturing’s cleanroom fan filter units, including our signature Criti-Clean product, provide sophisticated filtration and uniform curtains of air using our “laminar flow” technology. We harness the power of physics to provide even distribution of high-quality air where you need it most.

Now that we are able to include Native BACnet for cybersecurity protection, as well as HCAI certification, our fan filter units can arrive at your building project (or can be retrofitted into an existing system) with innovative features that come standard.

Additionally, we tailor your air distribution products to your needs—whether you require custom-size return air grilles or any other HVAC product we manufacture, we’ll build it to your exact specifications.

Contact AJ Manufacturing for All Your Custom HVAC Needs, Including Products for Your Critical Environment

When you work with AJ Manufacturing, you’ll quickly recognize that our commitment to serving your custom HVAC needs is second-to-none.

Not only do we include state-of-the-art features to anticipate your needs, but we’ve also worked painstakingly to strengthen our partnerships with suppliers in spite of the economic and environmental conditions of the past two years.

We’re back to pre-pandemic lead times and fully stocked supplies that many other manufacturers are still struggling to source due to supply chain issues.

We look forward to sharing how we work at AJ Manufacturing. We’re ready to demonstrate all the added benefits of choosing us for your cleanroom fan filter units and all other custom HVAC products.

To get in touch, contact us online, or call us at (816) 231-5522.

Ensuring Seismic Activity Doesn’t Stop Your Critical Environment was last modified: July 18th, 2025 by AJ Mfg