[labnetwork] Cleanroom recovery after smoke in intake

[Danny Pestal]

During the latest round of California wildfires in our area we experienced
terrible outdoor air quality, and a strong smell of smoke in the lab during
a couple days where the wind was blowing just right (or just wrong.) Lab
members were in a panic about the destruction of their devices due to the
perceived "smoke" that must also be in the lab accompanying the smell. This
just isn't the case.  The smoke smell is caused by an aromatic organic
compound called syringol. This molecule easily makes it through our air
filtering systems, but the chunky smoke (ash) particles do not. We did
particle counts during the worst of the smell and found no increase in
particles.

Your HEPAs (and more likely your primary and secondary intake filters)
should be doing almost all the work to protect the lab in this case. I
would suggest checking on the primary filters' DP after the smoke incident.
Ours ended up getting rather occluded.

I don't expect you to need to undergo any special cleaning of the interior
of the lab.

Danny Pestal

Equipment & Facilities Manager
Marvell NanoLab
University of California, Berkeley
510-809-8600

On Wed, Jun 6, 2018 at 12:55 AM, Leslie George <leslie.george at ku.ac.ae>
wrote:

> Dear colleagues,
>
>
>
> A fire broke out on Monday at one of the retail locations on our campus.
> The smoke from the fire got into the air intake for our cleanroom, and we
> can smell smoke throughout the Facility. I’d like to draw on the collective
> wisdom of the group to help answer the following:
>
>
>
> 1.      Recommend recovery method for the air handling system? (both
> upstream of the AHU) and downstream including the HEPA’s.
>
> 2.      Recommended cleaning scheme for the interior of the facility?
>
>
>
> I appreciate everyone’s assistance.
>
>
> Kind regards,
>
>
>
> *Leslie George, BSc, MSc*
>
> *Micro & Nano Fabrication Instructor, *
>
> *Research Laboratories*
>
> *Khalifa University – Masdar City Campus *
>
> Opposite Presidential Flight Airport
>
> Masdar City, SAF 1A (Undercroft)
>
> Khalifa City A,
>
> United Arab Emirates
>
> P O Box 127788, Abu Dhabi, UAE
> T +971 2 810 9227
>
> Fax +971 2 810 9901
>
> M +971 50 84 9720
>
> *leslie.george at ku.ac.ae <leslie.george at ku.ac.ae>*
> [image: cid:image001.png at 01D3DFD3.27E5A010]
>
> ku.ac.ae
>
> [image: cid:image002.jpg at 01D3E08C.D51AC120]
> <https://www.facebook.com/khalifauniversity>[image:
> cid:image003.jpg at 01D3E08C.D51AC120]
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> cid:image004.jpg at 01D3E08C.D51AC120] <https://twitter.com/KhalifaUni>[image:
> cid:image005.jpg at 01D3E08C.D51AC120]
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> cid:image006.jpg at 01D3E08C.D51AC120]
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>
>
>
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