ASHRAE Journal - December 2019 - 107

New Built-In Probe Measures and
Reports Real-Time CFM with 100% Accuracy.
AJ Manufacturing was one of the ﬁrst
manufacturers of critical environment
HVAC products to introduce digital
reporting of CFM output on the face of
our Criti-Clean FFU back in 2016. That
innovation made room-side visual
veriﬁcation and adjustment of needed
airﬂow quick and easy, with just a
glance up at the ceiling.
Today AJ leads the industry again
with another ﬁrst: real-time, 100%
accurate CFM measurement and
reporting, thanks to a ﬁrst-of-its-kind
probe built into the air inlets of our
Criti-Clean Ultra fan powered laminar
ﬂow HEPA ﬁlter diﬀusers.

Monitoring CFM with more accuracy
than ever before
Measuring the CFM produced by
critical environment HVAC products
currently relies on a computed

reading - an algorithm that's based
upon several performance assumptions -
to report the CFM. However, AJ's
revolutionary new probe senses and
reports CFM in real time.

oﬀers many beneﬁts to end users,
including:

AJ engineers collaborated with industry
experts for years to develop this new
groundbreaking technology in order
to take the guesswork out of laminar
ﬂow performance in critical care
environments. The new hyper accurate
CFM readings from the Criti-Clean Ultra
mean it will be easier than ever to verify
the necessary air changes per hour
to meet requirements for clean room
certiﬁcation.

* Insensitivity to HVAC inlet conditions

* True air ﬂow sensing, not based on
assumptions
* Field calibration to assure accuracy
* Not aﬀected by air pressure
To learn more, call us today at
816-231-5522 or visit ajmfg.com.

AJ's new ﬁrst-ofits-kind, built-in
CFM probe
measures and
reports CFM
with 100%
accuracy on our
convenient,
room-side display.

A range of valuable beneﬁts
Since the new built-in CFM
measurement probe takes a realtime reading and doesn't rely on
calculated performance data, it

How AJ Manufacturing Helps
Make Clean Rooms Clean
Primary HVAC systems provide conditioned air to a clean
room's plenum space, and variable ﬂow exhaust systems
maintain the correct room pressure. But it's the stainless
steel air distribution products from AJ Manufacturing
that help make and keep clean rooms clean, including:

Criti-Clean Ultra FFU
Our Criti-Clean Ultra laminar ﬂow HEPA ﬁlter diffusers provide
ﬁltered air in a laminar ﬂow over work areas, meeting air quality
and room change requirements - including those needed to
meet new USP 800 needs in pharmacies. They also eliminate
leak paths, allowing IEST 34 Certiﬁcation. Plus, Criti-Clean
Ultra's low plenum height (just 13.7") and available integrated
lighting make retroﬁtting into existing ceiling spaces easier.

Hinged Filter Grilles
Use our ﬁlter grilles as low wall returns to maximize laminar
ﬂow in clean room spaces and allow pre-ﬁltering without
additional ceiling penetrations to extend HEPA/ULPA ﬁlter life.
Need to meet USP 800 pharmacy
requirements? Scan code to
learn more or contact us today!

Criti-Clean Ultra
* Up to 1200 CFM
* Energy-efﬁcient
* Quiet operation

Hinged Filter Grille

816-231-5522
ajmfg.com
http://www.ajmfg.com http://www.ajmfg.com
ASHRAE Journal - December 2019

Table of Contents for the Digital Edition of ASHRAE Journal - December 2019
