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Roland99

(53,342 posts)
Sat Apr 4, 2020, 03:23 PM Apr 2020

Shop Towels for masks? 93% of particles down to 0.3 microns?

https://www.businessinsider.com/homemade-mask-using-hydro-knit-shop-towel-filters-better-2020-4
The ideal material turned out to be stretchy blue shop towels made from a polyester hydro knit.

Inserting two of these towels into an ordinary cotton mask brought filtration up to 93% of particles as small as 0.3 microns, the smallest their machine could test. Meanwhile, the cotton masks filtered 60% of particles at best in their tests, Schempf said.
42 replies = new reply since forum marked as read
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Shop Towels for masks? 93% of particles down to 0.3 microns? (Original Post) Roland99 Apr 2020 OP
Does Home Depot carry these? northoftheborder Apr 2020 #1
Probably Roland99 Apr 2020 #2
If you buy "microfiber" cleaning cloths, you already have them. Blue_true Apr 2020 #14
Respectfully, can you please tell me how you know this? eleny Apr 2020 #24
Put a microfiber towel over your mouth and try breathing in. Blue_true Apr 2020 #25
This message was self-deleted by its author elocs Apr 2020 #27
Yes, I know. It doesn't stop everything, it is just harder to take in air through it. nt Blue_true Apr 2020 #30
So it hasn't been tested like the hydro knit towels? eleny Apr 2020 #28
No, it has not been tested. nt Blue_true Apr 2020 #31
Lowe's and Walmart do, at least online northoftheborder Apr 2020 #3
They will have them in the stores also. Blue_true Apr 2020 #15
Swiffer dry sheets gademocrat7 Apr 2020 #4
I plan to test a paper towel inside my N95 mask. nt Blue_true Apr 2020 #16
This instructable uses Swiffer dry sheets as a filter. Chiyo-chichi Apr 2020 #23
We gearheads have them in place of the old orange cloth shop rags. Go to Oreillys gibraltar72 Apr 2020 #5
I think they are sold under the tag "microfiber". nt Blue_true Apr 2020 #17
After searching online, Harbor Freight has the ones they tested. cayugafalls Apr 2020 #6
never mind...found them! CurtEastPoint Apr 2020 #7
Thanks I just ordered some 😉😷 MLAA Apr 2020 #9
Can you send me the link? lindysalsagal Apr 2020 #12
every site I've tried does not have them in stock to order or buy in store northoftheborder Apr 2020 #19
here you go! MLAA Apr 2020 #20
THANKS!!! GOTTIT! lindysalsagal Apr 2020 #21
TY! SheltieLover Apr 2020 #33
Glad to hear it MLAA Apr 2020 #35
Are Wypall hydroknits the same? Do you happen to know? boston bean Apr 2020 #36
The people in the article tested a few different shop wipes MLAA Apr 2020 #38
dang - order was cancelled consider_this Apr 2020 #40
Mine too! MLAA Apr 2020 #41
i got that same bogus email. consider_this Apr 2020 #42
Thank you. Ordered some. MLAA Apr 2020 #8
I found a few rolls in my paint locker. My HEPA vacuum bags just showed up to... mitch96 Apr 2020 #10
My husband needed something for a mask today and used a paint rag csziggy Apr 2020 #11
That's awesome. Thanks for osting. I can make these. Sewing machine, skills, t-shirts. I have all SharonAnn Apr 2020 #26
Made my first one today! csziggy Apr 2020 #32
Auto parts stores carry these. Progressive Law Apr 2020 #13
"surgical-style masks like these aren't likely to protect a healthy person from getting the virus .. muriel_volestrangler Apr 2020 #18
Thank you for posting! Dem2theMax Apr 2020 #22
You're welcome! Roland99 Apr 2020 #29
I think I have some of those. ananda Apr 2020 #34
kick Demovictory9 Apr 2020 #37
Oh oh...the newest thing for hoarders to hoard?? Bengus81 Apr 2020 #39

Blue_true

(31,261 posts)
14. If you buy "microfiber" cleaning cloths, you already have them.
Sat Apr 4, 2020, 06:10 PM
Apr 2020

Just use the clean ones, or ones that are not too dirty. If you plan to buy them, hurry, they will be gone in a few days.

eleny

(46,166 posts)
24. Respectfully, can you please tell me how you know this?
Sun Apr 5, 2020, 02:38 PM
Apr 2020

I didn't realize that microfiber towels have the same properties as hydro knit. I"d like to check it out before I use them. it sounds like such an easy solution since so many of us keep these towels on hand.

Microfiber towels really hold up in the wash, too. I toss them in with other towels and wash them on a fierce Sanitize setting and I add the Steam function to that. It takes over 2 hours to finish the wash load and those microfibers look like brand new and never lose their cleanup functionality.

Hope to hear from you soon.

Response to Blue_true (Reply #25)

eleny

(46,166 posts)
28. So it hasn't been tested like the hydro knit towels?
Sun Apr 5, 2020, 03:12 PM
Apr 2020

I see your reasoning and was hoping that testing was done. Thanks for your reply.

Blue_true

(31,261 posts)
15. They will have them in the stores also.
Sat Apr 4, 2020, 06:12 PM
Apr 2020

They are used heavily by mechanic, contractors, in machine shops and by many homeowners. They are excellent for cleaning things like grease, they suck for finishing things like cleaning windows.

gibraltar72

(7,498 posts)
5. We gearheads have them in place of the old orange cloth shop rags. Go to Oreillys
Sat Apr 4, 2020, 03:32 PM
Apr 2020

or any auto supply chain. I usually have a couple rolls in stock Look for Scott towels.

cayugafalls

(5,639 posts)
6. After searching online, Harbor Freight has the ones they tested.
Sat Apr 4, 2020, 03:54 PM
Apr 2020

A lot of other stores were out of stock on the brands they tested.

Stay well.

MLAA

(17,232 posts)
38. The people in the article tested a few different shop wipes
Sun Apr 5, 2020, 09:09 PM
Apr 2020

Here is an excerpt from the original article:

‘Polyester hydro knit towels are readily available at hardware and automotive stores. The two brands they tested were ToolBox's shop towel and ZEP's industrial blue towel. Interestingly, Scott's pro shop towels, which are also made with a hydro knit fabric, didn't work as well, Schempf said.’

Leads me to believe not all hydro knit towels are created equal 😬

consider_this

(2,203 posts)
40. dang - order was cancelled
Wed Apr 8, 2020, 10:30 PM
Apr 2020

I ordered from them, but now got a message that they cancelled and they are on backorder.

MLAA

(17,232 posts)
41. Mine too!
Wed Apr 8, 2020, 10:32 PM
Apr 2020

It sounded like they sent me an email I overlooked saying it was on backorder and needed my approval. I don’t remember seeing it. I reordered so will watch more carefully to see if they send another request for me to approve backorder....

consider_this

(2,203 posts)
42. i got that same bogus email.
Wed Apr 8, 2020, 11:15 PM
Apr 2020

i got nothing but the first order confirmation, then the one saying they cancelled because I did not respond to something. I think they are just out of stock. The site says 'in store only' now.

mitch96

(13,869 posts)
10. I found a few rolls in my paint locker. My HEPA vacuum bags just showed up to...
Sat Apr 4, 2020, 05:02 PM
Apr 2020

Off to make some masks!!
m

csziggy

(34,131 posts)
11. My husband needed something for a mask today and used a paint rag
Sat Apr 4, 2020, 05:19 PM
Apr 2020

From a bag we bought at Lowes. The rags are just that - off cuts of various types of materials that vary widely as to thickness and stretchiness. The one he picked is kind of a double knit, extra thick tee shirt material.

While he was out he tried to find my sewing machine. Instead he found my serger, which I have not yet learned to use, so I will get used to it making masks!

I found directions for making masks and ties from tee shirts and will try that first.



csziggy

(34,131 posts)
32. Made my first one today!
Sun Apr 5, 2020, 03:42 PM
Apr 2020

Used a cheap undershirt/t-shirt for the "cords" - biggest problem is if you tear them like she did, the cheap shirts are not cut straight on the grain and tear at an angle. It worked out, since I tore and tore and it went around the shirt at a spiral, making a really long length.

Second problem is that I am using a cheap serger and so far I have not found a straight stitch or how to get both knives out of the way so I couldn't make the channel for the cords. The mask still worked just fine without the channels.

Right now I'm taking a lunch break and watching YouTube videos on how to use this machine. Maybe I can find out how to straight stitch and how to get both knives out of the way - I did find out how to lower one, but not the other. Since I'm serging I may skip turning the fabric and just let the stitches sit on top. I just want a quick and dirty mask method to whip out masks for friends.

My regular machine is in storage - husband tried to find it yesterday but could only find the serger. I do have three (or maybe four) antique machines upstairs. The Pritzlaff Electric that belonged to my grandmother (and maybe her mother before her) badly needs cleaning so I don't want to use it right now. The others, old Singers my husband picked up cheap, have not been cleaned or used since we got them, so I don't want to try them at all.

This is OK - I bought the serger years ago and never bothered to learn how to use it. So far I can thread it - a pretty good accomplishment!

A note - My husband found that putting the loop part of the cord on the lower part of the neck and tying the upper parts over the ears much easier than the way she shows in the video.

 

Progressive Law

(617 posts)
13. Auto parts stores carry these.
Sat Apr 4, 2020, 05:24 PM
Apr 2020

Autozone, O'Reilly's, Pep Boys, etc.

I happen to have a large stock of these because I like to work on cars as my hobby.

muriel_volestrangler

(101,258 posts)
18. "surgical-style masks like these aren't likely to protect a healthy person from getting the virus ..
Sat Apr 4, 2020, 06:26 PM
Apr 2020

... if people with COVID-19 wear them — especially along with following social distancing — that could help minimize the spread."

If you use this, that's important to remember - it's not about keeping you safe, it's keeping others safe from you. Don't alter the rest of your behaviour just because you wear this.

Dem2theMax

(9,632 posts)
22. Thank you for posting!
Sat Apr 4, 2020, 07:50 PM
Apr 2020

Harbor Freight still has them. You can only order two, but that's 400 towels. Yay!

Bengus81

(6,927 posts)
39. Oh oh...the newest thing for hoarders to hoard??
Sun Apr 5, 2020, 09:13 PM
Apr 2020

Just now starting to see TP show up on the shelves.........

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