Sustainability
Air hygiene is an energy measure.
Fouled systems work harder to move the same air. Scroll the drawing — cleaning drops the gauge.
The field-study energy result
Scroll: fouling comes off, the energy gauge comes down.
Cleaned systems used 41–60% less fan and blower energy than near-identical uncleaned ones across four field sites — the range of site averages — Ildiri et al., Energy and Buildings 328 (2025). Drag to rotate; scroll to run the clean.
Sourced numbers only
The numbers, with their sources
41–60%
less fan and blower energy than a near-identical uncleaned system — the range of site averages across four field sites, statistically significant at two of them
Source: Ildiri et al., Energy and Buildings 328 (2025) 115147 — supported by NADCA
10–46%
more supply airflow than a near-identical uncleaned system — measured at all four sites
Source: Ildiri et al., Energy and Buildings 328 (2025) 115147 — supported by NADCA
Both figures come from one peer-reviewed field study: four buildings across four climates, each cleaned system measured against a near-identical uncleaned one in peak cooling season. Nothing in it is annualised and none of the sites was in India — which is why every engagement starts with an inspection that measures yours. We publish only system-level, sourced numbers; anything unverifiable doesn't ship.
What we do on-site
- HEPA-filtered containment — captured contamination stays captured
- Responsible disposal of removed debris and filter media
- Chemical-minimal methods: mechanical source removal first, agents only where indicated
- Post-service energy talking points your team can lift into the ESG report
Feeding IGBC, GRIHA, LEED, WELL & ESG reporting
What your frameworks want is data, and cleaning produces it: pre/post airflow readings, photographic evidence of restored components, and a dated report. That supports the IAQ and ventilation intents assessed by IGBC Green Existing Buildings O&M and GRIHA for Existing Buildings, as well as LEED and WELL, and gives corporate ESG reporting a measured operational-efficiency line item.
On the projects side, rain water harvesting installations serve the same reporting need for water stewardship.
Energy & reporting questions
How does duct cleaning reduce energy consumption?
Dust on coils and duct surfaces forces fans and compressors to work harder to move and condition the same air. In a four-site field study published in Energy and Buildings (Ildiri et al. 2025, supported by NADCA), cleaned systems used 41–60% less fan and blower energy than near-identical uncleaned ones — that is the range of site averages, and it was statistically significant at two of the four sites. The study cleaned whole systems, coils and blowers included, not ducts alone.
Can HVAC cleaning contribute to IGBC, GRIHA, LEED or WELL credits?
Cleaning itself is not a credit, but it supports the indoor-air-quality and ventilation intents these rating systems assess. IGBC Green Existing Buildings O&M makes minimum fresh air a mandatory Health & Comfort requirement; GRIHA for Existing Buildings carries a Maintaining Good IAQ criterion; LEED and WELL score IAQ performance and ventilation effectiveness. The post-service report — airflow readings and photo evidence — is documentation your consultant can cite.
What data do we get for ESG reporting?
Every project closes with before/after photos and, where scoped, airflow readings against the pre-clean baseline. That gives your EHS or sustainability team a dated, sourced data point — a measured operational improvement, not an estimate.
Make your next audit an energy story.
Book a free inspection — the baseline readings start your before/after.