Global leader in clean air
solution for years

Global leader in clean air solution for years
Case Study

Energy Saved at Cancer Treatment Centre with MEGAcel® I filters

Customer Profile

Treatment centre

  • State-of-the-art cancer treatment centre located in Arizona, serving the Western United States
  • 213,000 square foot facility residing on a 25-acre site
  • Centre includes 24 private, ICU-capable inpatient rooms, radiation oncology, surgical suites, infusion centre, pharmacy, and rehabilitation oncology department

HEPA Filtration Upgrade

Specialised medical practices impose various demands on HVAC systems at healthcare facilities, which must operate at the highest efficiency. Under new state regulations, Cancer Treatment Centers of America® (CTCA) was required to update its air filtration system at the Western location. The new regulations called for HEPA filtration to be used in the air handling units (AHUs), to maintain a sterile environment when mixing chemotherapy drugs in the surgery area and pharmacy.

The original AHU racks in the surgery area and pharmacy were not designed for HEPA grade filters, but for single header ASHRAE grade filters. The regulation change required single header, HEPA filters that resulted in a custom size filter. These customised HEPA filters were a costly expense for CTCA.

AAF International’s distributor partner approached CTCA with an energy savings solution using AAF MEGAcel® I filters. CTCA welcomed a joint call from the distributor partner and an AAF International sales representative to explain the energy saving benefits of using MEGAcel I filters, as well as to show the potential cost savings through AAF International’s exclusive Total Cost of Ownership (TCO) programme.

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Challenges 1 – Air filtration system upgrade

Challenges 2 – Requires customized HEPA filters design

Challenges 3 – High Total Cost of Ownership (TCO)

AAF International and the distributor partner recommended replacing the current customised HEPA filter with the MEGAcel I filter. MEGAcel I filters incorporate AAF International’s unique ePTFE Technology, a proprietary, durable media, combining ultra-high efficiency with extremely low pressure drop.

Lower initial resistance significantly reduces energy consumption, resulting in substantial energy savings and cost benefits. Additionally, the racks were replaced with MEGAcel holding frames to maximise airflow.

The advantages of switching to the AAF MEGAcel I filters were impressive. The energy required to move the air through the HEPA filter section of the pharmacy AHU reduced from 4.54 kW to 2.27 kW, while the surgery area AHU energy usage reduced from 6.49 kW to 2.92 kW. This was a 50% decrease in energy consumption!

The MEGAcel I filter was the clear solution for the customer. As a result of the decision to install MEGAcel I filters, CTCA is able to order standard sized filters, eliminating the need for customised filters. This simplifies the ordering process. In addition, CTCA will recognise considerable energy savings using AAF International MEGAcel I filters.

Recommended Product & Solution

TCO Diagnostic®

The purpose of TCO Diagnostic is to assist you in selecting the best filters for your air handling systems and to understand their sensitivity to your operating conditions, in order to operate your system in the most optimal and effective manner.



Clean air is vital in hospital and healthcare facility operations to protect patients, staff and visitors from airborne diseases and infections, as well as to provide a comfortable, healthy and odour-free environment.


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