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Best Gas Masks

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Re: Best Gas Masks

#41

Post by mindslight »

fragmede wrote: post #16

The problem I found was that some of them are designed to keep particulates out but aren't as worried about also keeping particulates in as well. This was relevant-circa 2020. No idea how these rank on that metric.

I'd say basically all of them in this target market - a respirator with check valves is much more comfortable to use.

For the beginning of Covid I modded my 7500 (half face) to remove the check valve flaps and seal up what would normally be the exhaust ports, making both inhale and exhale go through the 2297 filters. It was harder to breathe, more humid, and developed liquid water accumulation over longer periods.

I would think that if you did the same thing with a full face respirator, it would immediately fog up. If you look at the flow path on them, it's something like atmosphere -> filter -> top face portion -> mouth nose portion -> atmosphere, presumably to keep the part you need to see out of full of dry air.

Re: Best Gas Masks

#42

Post by mindslight »

tom_ wrote: post #38
teach wrote: post #34

Earlier quoted context omitted.

A permanent ban seems strong, but it sure does seem like folks are using flagging as a super downvote in this case

But that is exactly what the flag button is there for?! - but this discussion has been had numerous times, and the two sides will never agree. Safest to flag (or not) as you see fit, because you are a good person rather than an evil one. Then rely on the admins to rescue needlessly ultraflagged articles as appropriate. They are pretty good at doing the right thing.

You're saying the discussion of which chemical respirators to wear to protests has been had numerous times?

I'd say this is a productive topic of conversation for many HN users. There are not "two sides" on this topic, unless we're talking 3M vs MSA. The people flagging or commenting with opposing political views are disrupting conversation, likely because they they disagree with how the topic has been framed. This is exactly like PHP fans going into a Python thread and telling everyone Python sucks, disrupting the people who just wanted to discuss getting things done within the framework of Python. They might have some valid points, but they're not germane to civil discussion.

Re: Best Gas Masks

#43

Post by mindslight »

nerdsniper wrote: post #24
EA-3167 wrote: post #21

Earlier quoted context omitted.

In many cases, especially for the higher end models, you can spend in the neighborhood of $100 to get an Rx face-shield. On the note of matters that didn't seem to come up much in the article, but that I feel like people should know: The kind of cartridge you need to withstand teargas is not an N95, as the top comment points out it's quite a bit more involved. The downside of that other than cost and duration of the…

Honestly the 3M 60923 cartridges don't restrict breathing at all. They have great airflow. I've used them all day long in chemical plants, no one complains about that.

Seconded. I've used those exact cartridges. Not for as long of shifts as you, but I'd say the face mask fit is much more important for that.

My DIY-perspective tip is that when you're getting to know the respirator, you can take the filter cartridges off and put your hands over the input ports to feel what fully restricted breathing feels like, make it a known sensation in case it ends up happening. Likewise you can cover the output port and breathe out to do a kind of rough fit test.

Re: Best Gas Masks

#44

Post by tom_ »

mindslight wrote: post #42
tom_ wrote: post #38

Earlier quoted context omitted.

But that is exactly what the flag button is there for?! - but this discussion has been had numerous times, and the two sides will never agree. Safest to flag (or not) as you see fit, because you are a good person rather than an evil one. Then rely on the admins to rescue needlessly ultraflagged articles as appropriate. They are pretty good at doing the right thing.

You're saying the discussion of which chemical respirators to wear to protests has been had numerous times? I'd say this is a productive topic of conversation for many HN users. There are not "two sides" on this topic, unless we're talking 3M vs MSA. The people flagging or commenting with opposing political views are disrupting conversation , likely because they they disagree with how the topic has been framed. This…

No, I was referring to discussion of the semantics of flagging. Apologies; I thought it was phrased clearly enough, but, perhaps not. (Maybe I should have said "that discussion" rather than "this discussion"? This is my native tongue, so you can't trust me to get this stuff perfectly right.)

Re: Best Gas Masks

#45

Post by rsync »

mindslight wrote: post #43
nerdsniper wrote: post #24

Earlier quoted context omitted.

Honestly the 3M 60923 cartridges don't restrict breathing at all. They have great airflow. I've used them all day long in chemical plants, no one complains about that.

Seconded. I've used those exact cartridges. Not for as long of shifts as you, but I'd say the face mask fit is much more important for that. My DIY-perspective tip is that when you're getting to know the respirator, you can take the filter cartridges off and put your hands over the input ports to feel what fully restricted breathing feels like, make it a known sensation in case it ends up happening. Likewise you can…

I save my hotel key cards and keep a few of them in each of the safety cabinets and kits.

You can hold up a key card to cover each bayonet filter and it seals it perfectly for a quick test at any time.

Re: Best Gas Masks

#46

Post by mindslight »

rsync wrote: post #45
mindslight wrote: post #43

Earlier quoted context omitted.

Seconded. I've used those exact cartridges. Not for as long of shifts as you, but I'd say the face mask fit is much more important for that. My DIY-perspective tip is that when you're getting to know the respirator, you can take the filter cartridges off and put your hands over the input ports to feel what fully restricted breathing feels like, make it a known sensation in case it ends up happening. Likewise you can…

I save my hotel key cards and keep a few of them in each of the safety cabinets and kits. You can hold up a key card to cover each bayonet filter and it seals it perfectly for a quick test at any time.

I usually put those in a parts drawer for use when opening electronic devices built with clipped together plastic cases.

Good tip, though! I'll have to try that next time I'm using the bayonets.

Re: Best Gas Masks

#47

Post by throwaway173738 »

exmadscientist wrote: post #10

> 3M does not provide product information on which filters are best for government repression Just get the one that everyone else does: NIOSH TC-84A-0510 with protection against "Solid Particles, Organic Vapors, Acid Gases, Ammonia, Formaldehyde, Methylamine". Every lab buys this filter, or its manufacturer equivalent, for dealing with god-knows-what, because this one will handle just about anything.

I would definitely do a full-face mask. You can buy them at Lowes for painting. The half masks do nothing to protect your eyes. Also try to get Pxx filters as they withstand oils. Some chemicals are oil-soluble and normal Nxx cartridges can’t handle more than one exposure.

Re: Best Gas Masks

#48

Post by atwrk »

zetanor wrote: post #6
dmazin wrote: post #2

While NYT etc mostly stand back as the U.S. crosses the rubicon, what started as a freaking gadget review site seems to employ nearly all the journalists with actual gusto left in America.

The gusto to post an Amazon affiliate listicle?

I mean if you'd only care about the affiliate revenue, there probably are better niches to serve than citizens looking to protect themselves from tear gas.

Re: Best Gas Masks

#49

Post by fxtentacle »

"I had forgotten that there could ever be domestic conflicts where law enforcement were not themselves belligerents."

ouch. Must be weird living where you live.

Re: Best Gas Masks

#50

Post by throwaway173738 »

nerdsniper wrote: post #24
EA-3167 wrote: post #21

Earlier quoted context omitted.

In many cases, especially for the higher end models, you can spend in the neighborhood of $100 to get an Rx face-shield. On the note of matters that didn't seem to come up much in the article, but that I feel like people should know: The kind of cartridge you need to withstand teargas is not an N95, as the top comment points out it's quite a bit more involved. The downside of that other than cost and duration of the…

Honestly the 3M 60923 cartridges don't restrict breathing at all. They have great airflow. I've used them all day long in chemical plants, no one complains about that.

Thirding this. I can wear one all day in hot weather with a half mask on climbing ladders. I did this to paint my house during fire season one year.
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