Here's what workers in a BSL-4 lab work in.
Caption CDC workers in a BSL4 Lab
caption: Woman working in a BSL-4 laboratory. She is wearing a full positive pressure suit.
Here's Bio level safety 3 garb (minus the goggles/face shield):
quote:
The site where I am based is designated a bio-safety laboratory level 3 – the classification reserved for highly infectious pathogens, which, to protect the public, must be contained under fail-safe conditions.
My special concern is the airborne micro-organism mycobacterium tuberculosis, which causes TB. I grow live bacteria and conduct careful experiments with compounds developed by our chemists. Right now I have several test-tubes under observation, any one of which could harbour a future generation of TB-fighting drugs.
Getting “suited-up” every morning is quite a performance. We start with protective shoes and light-blue jumpsuits and work our way up to face-masks equipped with air-cleansing filters, disposable caps and two pairs of gloves. For added security the laboratory is kept at negative pressure, which means that while air can flow in, it cannot flow out.
Graduates new to the site can initially find it rather nerve-racking. Working with infectious micro-organisms may not be everybody’s cup of tea; but if you respect the bacterium, it respects you.
===
The CDC (reccomends) has people working with a level four pathogen in level two/almost three, garb.
And hospital staff is operating in at best a level 2 environment.
What can go wrong?
===
.