[labnetwork] Question about cleanroom mask policies

[Orad Reshef]

Hey Shimon,

Pretty cool that you studied that yourselves!

I had to look this up to get the context — coronaviruses are 80-220 nm in
diameter
<https://www.sciencedirect.com/topics/medicine-and-dentistry/coronaviridae>,
so in the smallest category from your tests.

Regards,
Orad Reshef, PhD

Département de physique | Department of Physics
Université d’Ottawa | University of Ottawa
boydnlo.ca | reshef.ca


On Wed, Dec 16, 2020 at 8:21 AM Shimon Eliav <shimonel at savion.huji.ac.il>
wrote:

> Hi Robert,
>
>
>
> When we returned to work after the first lock-down, we asked ourselves
> what to do regarding masks/face covers.
>
> Then I did a very simple experiment to check by myself how effective is a
> face-cover to contain the particles we generate during normal respiration
> or talking. See attached summary.
>
>
>
> Today our policy is: every user comes with his/her own mask and must put
> the face cover over it. This “two layers” solution is more than enough
> inside the clean room (plus as much distancing is possible).
>
>
>
> Regards,
>
>
>
> Shimon
>
> The Hebrew University of Jerusalem
>
> The Unit for Nano Fabrication
>
> Jerusalem - Israel
>
>
>
> *From:* labnetwork-bounces at mtl.mit.edu [mailto:
> labnetwork-bounces at mtl.mit.edu] *On Behalf Of *Robert Vandusen
> *Sent:* Tuesday, 15 December 2020 19:29
> *To:* labnetwork at mtl.mit.edu
> *Subject:* [labnetwork] Question about cleanroom mask policies
>
>
>
> Hi all.
>
> Hope this finds everyone safe.
>
> Now that N95s are starting to become a bit more accessible, there has been
> some recent discussion within our labs about whether to adopt an N95 mask
> policy for new users and when distancing is a challenge.
>
> So far we have just been wearing the standard cleanroom style masks.
>
> Just wondering what other labs have been using.
>
>
>
> Thanks
>
> Robert Vandusen
> Technical Officer, Microfabrication Lab
> Electronics Department
> Carleton University
> room: 4184 Mackenzie Building
> 613-520-2600 ext 5761
> Robert_vandusen at cunet.carleton.ca
>
>
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