Case Studies
Library
CS010 · Public / Library · SAN-AIR Distributor — New Zealand
Case Study — CS010
Library (Indoor Air Quality)
Client: SAN-AIR Distributor — New Zealand | Sector: Public / Library
Situation
Our client was approached by the Library Facility Management. The management reported high levels of mould in the Library, both in visible form and with highly noticeable musty odours. The wellness of employees in the library was also discussed.
Despite having used other means to control the issue, such as UV lights and other similar devices, there was no abatement to the mould infestation. This building is located in New Zealand.
Treatment
The treatment suggested for implementation was simply to deploy 500gm blocks of gel in a random selection of three Air Handler Units (AHU). Twelve (12) gel blocks in total were deployed.
Test Methodology
- 01The Library management selected an independent laboratory
- 02Laboratory personnel carried out measurements before deployment of SAN-AIR Gel
- 03The laboratory was responsible for collecting samples and analysing incubation results
- 043 Air Handler Units (AHU) were tested out of a total of 31 AHU servicing the building
- 05Treatment period: 8 weeks
Result
- AHU #3: 3,200,000 → <10 CFU (99.999% reduction, Log 5.5)
- AHU #8: 3,500,000 → 350 CFU (99.990% reduction, Log 4)
- AHU #31: 1,200,000 → 80 CFU (99.993% reduction, Log 4.17)
- Musty odour completely disappeared
- Employee discomfort from mustiness was no longer noticed
Conclusion
The deployment of SAN-AIR gel caused a remarkable decrease in bioburden. This in turn improved the Indoor Air Quality in the library by Log 4 and better, returning the library indoor to a high level of Indoor Air Quality.
