Case Study:
Surgical Airflow Restored at Phoebe Putney Memorial Hospital

NBC-Verified Gains and Up to 48% More Airflow

Key Outcomes

AHU ID Pre-Cleaning CFM Post-Cleaning CFM Airflow Increase (%)
AHU-13 21310 27144 27
AHU-14 22309 26410 19
AHU-15 20332 25464 25
AHU-24 6700 8210 22
AHU-25 7314 10881 48
AHU-29 14210 16319 15
AHU-30 19169 18520 -3
AHU-34 18287 22315 20
AHU-48 5315 6520 22

Client: Phoebe Putney Memorial Hospital, Albany, GA

Industry: Healthcare

Service Provided: Sustainable HVAC coil cleaning by Green Air EnvironmentalTM: steam-based, non-toxic, chemical-free cleaning of AHU coils, followed by independent pre/post TAB to verify performance.

GA Case Study challenge Putney Memorial Hospital

The Challenge

Phoebe Putney Memorial Hospital operates multiple Air Handling Units (AHUs) that are critical for maintaining a sterile and comfortable environment in operating rooms and patient care areas. Over time, HVAC coils accumulate dirt and biofilm, which reduces airflow, increases static pressure, and forces motors to work harder – raising both energy costs and maintenance needs.

The Solution

Green Air EnvironmentalTM performed steam-only, chemical-free coil cleaning on the affected 9 AHUs. This sustainable process re-opens coil fin passages and restores heat-transfer surfaces without hazardous chemicals – ideal for healthcare environments.

Objectives

  • Improve HVAC airflow and system efficiency.
  • Reduce static pressure to ease motor workload.
  • Lower energy consumption and operational costs.
  • Maintain a chemical-free, environmentally responsible cleaning process.
GA Case Study solution Putney Memorial Hospital

Measurement & Approach

Pre-service baseline readings

Air Science Test & Balance, LLC measured airflow (CFM), static pressure, fan RPM, and motor electrical load across nine AHUs.

Coil cleaning with steam

No chemicals were used, ensuring safety for patients and staff while eliminating hazardous waste.

Post-service performance readings

Same measurements repeated to assess improvement.

Comparative analysis

Performance metrics compared pre- and post-cleaning to quantify impact.

Results

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Operational Impact

  • In most cases, fan speed requirements decreased post-cleaning, reducing motor electrical draw.

  • Lower static pressure means reduced system strain, extending equipment life.

  • Anticipated energy cost savings from reduced kWh consumption.

  • Improved air circulation supports better climate control in critical hospital areas.

Environmental & Business Value

  • Chemical-free process eliminated hazardous waste disposal.
  • Sustainable operations aligned with the hospital’s green initiatives.
  • Cost savings from reduced energy usage and deferred capital expenditure on motor replacements.
  • Improved indoor air quality benefits patients, staff, and visitors.
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Are you ready to improve your facility’s airflow and cut energy costs – without chemicals?