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SnipingShamrock t1_iy4t3zv wrote

Reply to comment by [deleted] in Surgeons work by flashlight as Ukraine power grid battered by scot816

I don’t think it’s about laminar flow all laminar flow relates to is the turbulence or Reynolds’s number of the flow, the reason you want positive pressure is so outside air won’t contaminate due to pressure difference. All that matters is you have air constantly being pumped into the room.

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JoJoRenegade t1_iy5ajbx wrote

Ahh my bad I thought what was mentioned was laminar flow. Currently doing my clinicals for surg tech now I know that I have to touch up on that portion

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SnipingShamrock t1_iy5ow3b wrote

I think labs have something crazy like 6 full air changed an hour which means they need to essentially pump in 6 or more rooms full of air every single hour and this massive CFM (cubic feet per minute) load generates a large pressure difference in the room so it’s impossible for the unpressurized hallway to contaminate. pretty cool imo

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SomexBadxNoob t1_iy5zhxx wrote

We do the reverse for asbestos abatement. Negative pressure so no fibers escape.

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