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  #21  
Old 10.03.2020, 21:13
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Re: How to make your own protective mask

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tee tree is good. but dilute it
I understand tea tree, but what exactly? Oil?
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  #22  
Old 10.03.2020, 21:19
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Re: How to make your own protective mask

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I understand tea tree, but what exactly? Oil?
Teebaum ( tee tree ) ätherische öle. Farfalla has many https://www.farfalla.ch/de/
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Old 11.03.2020, 10:30
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Re: How to make your own protective mask

Has anyone tried masks from the paint shop? The masks appear to be very solid. Looks stupid but definitely protects ...
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  #24  
Old 11.03.2020, 10:49
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Re: How to make your own protective mask

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Has anyone tried masks from the paint shop? The masks appear to be very solid. Looks stupid but definitely protects ...
Do you have an image or a link of the mask? Not sure which one you meant.
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  #25  
Old 11.03.2020, 11:07
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Re: How to make your own protective mask

Useful information for those who still can find masks:

What to look for when buying a mask?

PFE (>95%)

VFE (>95%) (Seen most in japanese masks)

ASTM Level 1/2/3 (American standard)

EN 14683 (Type II) (European standard, you see them here most often)

CNS 14774

KF94 / KF99 (Korean Standard)

N95 / N99 / N100

FFP2 / FFP3

If nothing is listed or it's not one of the above, they might just be a dust mask for dust or blocking the sun.

Again, masks with valves are just for protecting yourself, not the others, air is filtered on it's way in not the way out (directly through the valve.)
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  #26  
Old 12.03.2020, 09:32
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Re: How to make your own protective mask

some innovative ideas here https://www.instagram.com/p/B9mI4_GB...d=tg0jrtca2zyu
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  #27  
Old 12.03.2020, 13:06
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Re: How to make your own protective mask

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To me the less droplets I receive, the less virus for my body to fight off.
It only takes one. They multiply you know.
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  #28  
Old 12.03.2020, 13:22
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Re: How to make your own protective mask

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It only takes one. They multiply you know.
Theoretically yes, practically it depends upon the size of the viral exposure/inoculum, no? If it replicates slow enough the lesser number of infected cells for the immune system to fight off, the higher the chance stop it from taking hold no? Otherwise why bother washing/sanitizing your hands at all, it doesn't kill 100% of viruses.
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Old 15.03.2020, 10:02
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Re: How to make your own protective mask

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The HKMask inventor K Kwong claims that using two layers of tissue papers as a filter in his reusable mask design can have 70% of filtration efficiency of a N95, and you can change as often as you want, there's no way I can verify that, but worth a try if you don't wanna pay 120chf for a mask on ricardo
It seems like Migros still has a lot of face mask options for reasonable prices ... no need to spend 120 francs! I only found out because my new hobby requires one of them, since I'm mixing and casting epoxy resin - you don't want that stuff anywhere near your skin, eyes, nose, mouth, or lungs (so I have disposable gloves and safety glasses as well). Most of the description for the resin on the Migros website was the health and safety warning ...
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  #30  
Old 15.03.2020, 10:48
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Re: How to make your own protective mask

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It seems like Migros still has a lot of face mask options for reasonable prices ... no need to spend 120 francs! I only found out because my new hobby requires one of them, since I'm mixing and casting epoxy resin - you don't want that stuff anywhere near your skin, eyes, nose, mouth, or lungs (so I have disposable gloves and safety glasses as well). Most of the description for the resin on the Migros website was the health and safety warning ...
When you click “check availability” they are all out of stock. Besides I have to repeat again those masks with valves only filters the air in not it’s way out, your droplets go straight through the valve when you sneeze. It’s no good if your intention is to protect the others as well.
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Old 15.03.2020, 11:02
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Re: How to make your own protective mask

ETA:

Snap, Spaghetti.

You type faster than I do.

Moving on...
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  #32  
Old 16.03.2020, 05:48
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Re: How to make your own protective mask

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When you click “check availability” they are all out of stock. Besides I have to repeat again those masks with valves only filters the air in not it’s way out, your droplets go straight through the valve when you sneeze. It’s no good if your intention is to protect the others as well.
They are not out of stock of all types. Two of the five options on that page are out of stock, the other three types are still available.

btw, if you're sneezing, then you have a cold or an allergy - not covid-19. Also, you should always be coughing or sneezing into your shoulder or arm anyway to block the bulk of the spray, to prevent spreading whatever you might have.

The WHO has an FAQ if you're confused about symptoms ...
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  #33  
Old 16.03.2020, 09:58
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Re: How to make your own protective mask

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They are not out of stock of all types. Two of the five options on that page are out of stock, the other three types are still available.

btw, if you're sneezing, then you have a cold or an allergy - not covid-19. Also, you should always be coughing or sneezing into your shoulder or arm anyway to block the bulk of the spray, to prevent spreading whatever you might have.

The WHO has an FAQ if you're confused about symptoms ...
I'm well awared of the symptoms. People sneeze because of a lot of reasons, AND of course you should sneeze into the crook of the arm. AND you can be infected but having no symptoms. Which is why I do not recommend wearing mask with valves, it's worse than surgical mask in terms of protecting the others.
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  #34  
Old 16.03.2020, 14:01
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Re: How to make your own protective mask

As I understood Dr Kwong, his home-made mask involves making a cloth sleeve, and filling it with several layers of various kinds of paper tissue, placed criss-cross. And ideally, if one has the resources, tossing out the tissue as soon as it seems to have become wet. Also, that's the moment to take a clean sleeve, too, with clean layers of dry paper tissue. Less ideally, fill the used sleeve with dry paper tissue. He devised some methods to keep this mask snugly on one's face.

Dr Kwong didn't claim that his home-made masks were super-effective, but his tests showed them to be more or less half as effective as a proper mask. And this for both protecting oneself (breathing in air and droplets) and protecting others (breathing out air and droplets).

Now, that's no great recommendation for the efficacy of his home-made ideas, and plainly a properly effective medical mask would be much better. But he said - and I agree - that in the absence of being able to obtain a proper mask, if one must be in a risky situation, or cannot avoid having to approach someone who is at risk, 50% is better than nothing at all.
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  #35  
Old 16.03.2020, 14:46
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Re: How to make your own protective mask

A plastic bag over the head is probably more effective at preventing transmission of both virus and irrational panic.
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  #36  
Old 16.03.2020, 14:49
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Re: How to make your own protective mask

Probably, with regard to reducing transmission. But very likely to cause real panic.
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Old 16.03.2020, 14:59
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Re: How to make your own protective mask

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It seems like Migros still has a lot of face mask options for reasonable prices ... no need to spend 120 francs! I only found out because my new hobby requires one of them, since I'm mixing and casting epoxy resin - you don't want that stuff anywhere near your skin, eyes, nose, mouth, or lungs (so I have disposable gloves and safety glasses as well). Most of the description for the resin on the Migros website was the health and safety warning ...
The masks are showing up on the website there, but it says they're not available for purchase online and also says that none are available in the stores, when you check to see if they are. Also, those masks aren't really the kind that can help prevent you from catching or spreading the virus. Best kind to help prevent catching it is FFP2 or FFP3. Wearing surgical masks can help you not spread it.
I'm actually a bit surprised that I haven't seen people wearing masks here yet (is that because people don't have them?). I just finally saw the first person wearing one this morning, in the parking lot outside of Migros. Looked like a standard surgical mask.
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Old 16.03.2020, 15:02
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Re: How to make your own protective mask

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I'm well awared of the symptoms. People sneeze because of a lot of reasons, AND of course you should sneeze into the crook of the arm. AND you can be infected but having no symptoms. Which is why I do not recommend wearing mask with valves, it's worse than surgical mask in terms of protecting the others.
That's interesting. I had read that the respirator masks (with valves) were the best kind to wear and knew that they were the only kind to help prevent you from catching it but had no idea that they didn't also work to help prevent others from catching it.
I wonder how long it will be until we see a lot of people wearing them here.
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Old 16.03.2020, 19:58
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Re: How to make your own protective mask

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That's interesting. I had read that the respirator masks (with valves) were the best kind to wear and knew that they were the only kind to help prevent you from catching it but had no idea that they didn't also work to help prevent others from catching it.
I wonder how long it will be until we see a lot of people wearing them here.
From my understanding, the valve is one directional, when you breath in, the valve shuts and therefore air is filtered through the mask material, when you breath out, the air goes out through the valve without being filtered.
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Old 22.03.2020, 11:08
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Re: How to make your own protective mask

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As I understood Dr Kwong, his home-made mask involves making a cloth sleeve, and filling it with several layers of various kinds of paper tissue, placed criss-cross. And ideally, if one has the resources, tossing out the tissue as soon as it seems to have become wet. Also, that's the moment to take a clean sleeve, too, with clean layers of dry paper tissue. Less ideally, fill the used sleeve with dry paper tissue. He devised some methods to keep this mask snugly on one's face.

Dr Kwong didn't claim that his home-made masks were super-effective, but his tests showed them to be more or less half as effective as a proper mask. And this for both protecting oneself (breathing in air and droplets) and protecting others (breathing out air and droplets).

Now, that's no great recommendation for the efficacy of his home-made ideas, and plainly a properly effective medical mask would be much better. But he said - and I agree - that in the absence of being able to obtain a proper mask, if one must be in a risky situation, or cannot avoid having to approach someone who is at risk, 50% is better than nothing at all.

So new information shows it's not merely 50%, It depends on how many layers and in what angle do you overlap them, please see attached image:
Name:  90428622_10157951497617158_9105548933463015424_o.jpg
Views: 320
Size:  91.5 KB
Name:  89902138_10157951497767158_5588730192810999808_o.jpg
Views: 311
Size:  55.9 KB


Source: K Kwong's facebook page
https://www.facebook.com/DrKKwongChe...158?__tn__=K-R
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