[labnetwork] Cleanroom recovery after smoke in intake

[Paul, Jack]

Hello Leslie,
I'm very sorry to hear of your misfortune.
First and foremost we would recommend replacing the filters on your air handler - you may have already done that, and a thorough cleaning of the air handler including the coils and even down to the fan blades.

Internal to the lab - downstream of the air handler, suggest you some of your HEPA filters in the cleanroom.  In my limited experience with smoke contamination, those filters will need to be replaced, but if you can inspect a few for damage (discoloration of the media), and also test a sample of the media.  At that point you will have a better idea of the level of contamination between the air handler and the final filters - and that may drive you to inspect and/or clean that ductwork.  Without knowing the material that burned, you are faced with the insidious nature of smoke that "sticks" to everyplace it is exposed.

Lastly, within the cleanroom proper you may want to do a thorough cleaning including HEPA vacuum then wipe down of all walls, ceilings, floor and tool surfaces with an IPA/water solution (sometimes called a "super clean").

The labnework community is full of folks with great experience and I'm sure you'll get additional suggestions.
Regards,
Jack

Jack Paul, RA, LEED AP BD+C
D 602.474.3940  M 602.369.2086
hdrinc.com/follow-us<http://hdrinc.com/follow-us>

From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Leslie George
Sent: Wednesday, June 6, 2018 12:55 AM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Cleanroom recovery after smoke in intake

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<mailto:leslie.george at ku.ac.ae>
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