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Response to TheBlackAdder (Reply #20)

Sun Mar 29, 2020, 01:09 PM

21. The gist of my post was.....

If we're going to post ideas of any sort for personal protection against a deadly virus, we should include a disclaimer reminding everyone it is purely an untested amateur idea and has no guarantee of performing the task and to use at your own risk.

What guarantee can you provide that such ideas are even the least bit effective? I'll remind everyone that we're dealing with virus particles on the order of 0.05 microns diameter in aerosol form or micron-size water vapor with entrained virus and common sense rules do not apply. Each filter media is designed to capture a certain percentage of particulate in a certain size range, of a certain chemical nature, and for a specific air flow rate per unit area. When design flow rates are exceeded, micron-size particles can rush through a filter like a rocket.

Any type common filter media will likely block a certain unknown percentage of vapor and particulate trying to pas through it. But is that percentage 2% or is it 75%, or is it nearly zero? However, in our culture, use of such things tend to create complacency and recklessness, especially as thousands of amateur ideas float about on blogs and social media.

I don't think I could live with the shame if I recommended the use of a product intended for furnace filters to my next door neighbor after which he jury-rigged himself a mask and then went to his job for a long shift at a retail store or hospital, totally believing that he was safe and then died the next week of coronavirus.

I posted the link to the NIOSH rule so people could realize how complex the requirements are for such devices. They are complex for a reason.

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Replies to this discussion thread
Arrow 21 replies Author Time Post
TheBlackAdder Mar 2020 OP
Merlot Mar 2020 #1
happybird Mar 2020 #4
happybird Mar 2020 #2
Merlot Mar 2020 #8
gibraltar72 Mar 2020 #3
In_The_Wind Mar 2020 #7
dweller Mar 2020 #5
dalton99a Mar 2020 #6
Merlot Mar 2020 #9
TheBlackAdder Mar 2020 #12
WePurrsevere Mar 2020 #10
Jersey Devil Mar 2020 #11
TheBlackAdder Mar 2020 #13
ornotna Mar 2020 #14
Jersey Devil Mar 2020 #15
ornotna Mar 2020 #17
TheBlackAdder Mar 2020 #18
CrispyQ Mar 2020 #16
KY_EnviroGuy Mar 2020 #19
TheBlackAdder Mar 2020 #20
LineLineLineNew Reply The gist of my post was.....
KY_EnviroGuy Mar 2020 #21
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