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sl8

(13,779 posts) Tue Mar 31, 2020, 03:24 PM Mar 2020

A Particle is a Particle

Explains how respirators/filters stop particles, the different ratings, etc..

A Particle is a Particle

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NIOSH
4.01K subscribers
Published on Jul 6, 2016
For decades, respirator researchers have been asked whether filters need to be tested with aerosols similar to those encountered in the environment. Common sense suggests that viruses or bacteria are collected differently from engineered nanoparticles, silica dusts, oil mists or other types of workplace aerosols. But that is not necessarily the case.
For more information, including further scientific reading on this topic, please see
https://www.cdc.gov/niosh/npptl/particle.html

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A Particle is a Particle (Original Post) sl8 Mar 2020 OP

Useful, but I kept wondering about using and re-using respirators and particle overload erronis Mar 2020 #1

Well, keep in mind that they aren't meant to be REUSED ! Haggis for Breakfast Mar 2020 #2

erronis

(15,272 posts)

1. Useful, but I kept wondering about using and re-using respirators and particle overload

Reply to sl8 (Original post)

Tue Mar 31, 2020, 03:45 PM

Mar 2020

Looking at those fun stick figures and clouds of particles being trapped in a mesh, it made me question how many particles could a single respirator (N95/99/100) deal with.

We're being told to re-use any masks we have over and over.

How to clean these filters/masks over and over to have them maintain their efficiency?

Haggis for Breakfast

(6,831 posts)

2. Well, keep in mind that they aren't meant to be REUSED !

Reply to erronis (Reply #1)

Tue Mar 31, 2020, 10:43 PM

Mar 2020

And under normal circumstances, they wouldn't be reused.

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