I am so thankful for human creativity, courage and generosity. It is great that the mask has continued passing the test after autoclave and after commercial washing/drying. My question is, have you checked for the filtration capacity of the mask after the washing/drying/sterilization processes? THANK YOU !!!
This material works with a thermal bond as you see on the edge in how they connected the two layers. I have tested a wood burning knife and it just melts right through. These masks could be mass produced if someone had a heated embossing machine in the shape of the seams you are making. If you apply heat and pressure it would seal the seam without creating tiny pin holes. I have tested a FUSE tool from We R Memory Keepers and it works SOMEWHAT but I am wasting time testing this out and need to make masks so I am putting this here in case you have more knowledge of machines and how to use this information. I had puzzled the possibility of taking some of those thin metal dies (for paper rafting) and bending them to the shapes of each seam, or mainly just the seams over the mouth. (I don’t think the ties need to be sealed thermally.) Once you bend the die metal to the correct shape there is a crafting item that will apply pressure and also heats (low temp) as you run it through a die press. The heated item is made by a company called Crafter’s Companion and their electric die cutting machine works with this item but it is not exclusive and you can use a Sizzix Machine or any other hand crank die cutting machine.
Mary, Really great idea, we also have tried thermal "welding" the material and experimenting with the temperatures. We cannot get the setting correct either, and there is probably a quarter to half a degree window between cutting and welding. We don't have sophisticated enough machinery or equipment to control the temp and pressure with the required precision though. We could try and reach out to the manfucturer for guidance on what they recommend but it may be proprietary. Let us know what you find out. Its really awesome what you are trying.
Great job on the designing this pattern! The University of Florida design requires sewing multiple darts which is time consuming and requires a little more advance sewing skills.
Thank you Tracy! There's also another timesaver that we discovered. We found that you dont have to attach each strap to each corner independently, but can tack 2 straps at a time to one side of a pattern half corner because the panel gets folded over anyway (after the front is topstitched around timestamp 7:36). Saves the time of attaching two other straps a piece, which adds up when you make hundreds of these.
@@mulibex9937 We find new innovative ways of doing each step a little easier, a little faster, thank you SO MUCH for such an informative video and a superb design. Take care and stay well
Is there another website store that sell the material cheaper or is there another material that you can recommend that might be more cost effective thank you
It looks like Amazon also sells the material but unfortunately it comes in BULK quantities. We really cannot safely recommened using any other material because we havent tested it ourselves. We will keep looking for a suitable less expensive alternative and get back to you.
I am seeing people talk about running this through a washing machine . Would running it though a washing machine compromise the filter ability of this material? Hospitals use an autoclave. Is there a way to mimic an autoclave with homemade items?
SO big news on machine washing this material!! our lab tester (scrub tech for the OR) has cycled through the autoclave multiple times and passed the FIT test each time, He then machine washed it, dried in a regular commercial clothes dryer and FIT tested again. It passed! We don't know how many machine wash cycles its good for, but its a good start. We'll keep testing. We do NOT recommend wearing this wet, or it will just suck down onto your face like a plastic bag or saran wrap, it must be dry to work. As for home made sterilization, you can either sterilize it with UV light, or bake in the oven at 250-270 F for 30 minutes.
Are you using brand new sterilization wrap or used sterilization wrap? I managed to get my hands on some brand new packages of the H100 (it has very similar ratings to the h600) but I’m unsure if I need to run them through the oven first to “activate” it or if it comes at full strength filtration straight out of the box and autoclave virgin. Any insight would be appreciated, I am having difficulty finding things in the internet as this is still so new and unconventional
The sterilization wrap comes ready to use. The autoclave just allows for sterilization of the materials for use during surgeries. We offer the H100 in smaller quantities as well: www.rydge.tech/product/h100-40x40-sterilization-wrap-sheets/
The University of Florida article recommends 2 layers, and we have not tested the single layer in a FIT test. Also unless you have the flat metal strips that can bond to the outside you wouldn't be able to use the construction methods shown here to retain the nose brim with a single layer. We don't think the external bonded nosebrim adhesive will survive the autoclave. That has yet to be tested however, and we can't procure them either to test.
Thank you for your video very helpful but unfortunately at this moment I can not afford the materials is there another option available that will still protect each thank you
It looks like Amazon also sells the material but unfortunately it comes in BULK quantities (search "sterilization wrap). We really cannot safely recommened using any other material because we havent tested it ourselves. We will keep looking for a suitable less expensive alternative and get back to you.
@@adleeadle4028 we initially got this material from the local hospital if you know someone that works in the operating room or surgical processing department, this material is literally discarded once the sterile instruments are transferred to the OR once they remove the sterilization wrap. Many OR's are currently recycling the material. They may be able to get you a "free" discarded sample that has been sterilized.
H600 vs H100 doesn’t mean less filtration per se. He have had great success with the H100 and have been able to source it in bulk. So we have divided it up in small quantities to offer to other making masks. www.rydge.tech/product/h100-40x40-sterilization-wrap-sheets/
We're using a 100% Polyester thread - (size 69/Tex 70/Gov E) so pretty durable. We are not sure about lighter Poly thread though, but if you arent going to autoclave it, the lighter poly threads should be just fine with the double stitching.
I am so thankful for human creativity, courage and generosity. It is great that the mask has continued passing the test after autoclave and after commercial washing/drying. My question is, have you checked for the filtration capacity of the mask after the washing/drying/sterilization processes? THANK YOU !!!
This material works with a thermal bond as you see on the edge in how they connected the two layers. I have tested a wood burning knife and it just melts right through. These masks could be mass produced if someone had a heated embossing machine in the shape of the seams you are making. If you apply heat and pressure it would seal the seam without creating tiny pin holes. I have tested a FUSE tool from We R Memory Keepers and it works SOMEWHAT but I am wasting time testing this out and need to make masks so I am putting this here in case you have more knowledge of machines and how to use this information. I had puzzled the possibility of taking some of those thin metal dies (for paper rafting) and bending them to the shapes of each seam, or mainly just the seams over the mouth. (I don’t think the ties need to be sealed thermally.) Once you bend the die metal to the correct shape there is a crafting item that will apply pressure and also heats (low temp) as you run it through a die press. The heated item is made by a company called Crafter’s Companion and their electric die cutting machine works with this item but it is not exclusive and you can use a Sizzix Machine or any other hand crank die cutting machine.
Mary, Really great idea, we also have tried thermal "welding" the material and experimenting with the temperatures. We cannot get the setting correct either, and there is probably a quarter to half a degree window between cutting and welding. We don't have sophisticated enough machinery or equipment to control the temp and pressure with the required precision though. We could try and reach out to the manfucturer for guidance on what they recommend but it may be proprietary. Let us know what you find out. Its really awesome what you are trying.
Henky vacuum impulse manual bag sealer - on amazon...it has an adjustable temp knob
Thank you! I'm trying to help our local healthcare workers.
So awesome, thank you for what you're doing. I hope this helps. Will be loading the pattern up soon.
Pattern is up and ready to download.
Thanks for this video and for the links to the products needed.
Thanks Brady, we hope that this gives you the help you need. Let us know how it turns out.
We think you're on to something here with those aluminum chain link fence wire ties! Awesome Suggestion!! going to see if we can get some.
Great job on the designing this pattern! The University of Florida design requires sewing multiple darts which is time consuming and requires a little more advance sewing skills.
Thank you Tracy! There's also another timesaver that we discovered. We found that you dont have to attach each strap to each corner independently, but can tack 2 straps at a time to one side of a pattern half corner because the panel gets folded over anyway (after the front is topstitched around timestamp 7:36). Saves the time of attaching two other straps a piece, which adds up when you make hundreds of these.
@@mulibex9937 We find new innovative ways of doing each step a little easier, a little faster, thank you SO MUCH for such an informative video and a superb design. Take care and stay well
Is there another website store that sell the material cheaper or is there another material that you can recommend that might be more cost effective thank you
It looks like Amazon also sells the material but unfortunately it comes in BULK quantities. We really cannot safely recommened using any other material because we havent tested it ourselves. We will keep looking for a suitable less expensive alternative and get back to you.
www.rydge.tech/product/h100-40x40-sterilization-wrap-sheets/
I am seeing people talk about running this through a washing machine . Would running it though a washing machine compromise the filter ability of this material? Hospitals use an autoclave. Is there a way to mimic an autoclave with homemade items?
SO big news on machine washing this material!! our lab tester (scrub tech for the OR) has cycled through the autoclave multiple times and passed the FIT test each time, He then machine washed it, dried in a regular commercial clothes dryer and FIT tested again. It passed! We don't know how many machine wash cycles its good for, but its a good start. We'll keep testing. We do NOT recommend wearing this wet, or it will just suck down onto your face like a plastic bag or saran wrap, it must be dry to work.
As for home made sterilization, you can either sterilize it with UV light, or bake in the oven at 250-270 F for 30 minutes.
Are you using brand new sterilization wrap or used sterilization wrap? I managed to get my hands on some brand new packages of the H100 (it has very similar ratings to the h600) but I’m unsure if I need to run them through the oven first to “activate” it or if it comes at full strength filtration straight out of the box and autoclave virgin. Any insight would be appreciated, I am having difficulty finding things in the internet as this is still so new and unconventional
The sterilization wrap comes ready to use. The autoclave just allows for sterilization of the materials for use during surgeries. We offer the H100 in smaller quantities as well: www.rydge.tech/product/h100-40x40-sterilization-wrap-sheets/
I would like to know if both layers are necessary or if each layer works as a filter if separated. Does it require both layers?
The University of Florida article recommends 2 layers, and we have not tested the single layer in a FIT test. Also unless you have the flat metal strips that can bond to the outside you wouldn't be able to use the construction methods shown here to retain the nose brim with a single layer. We don't think the external bonded nosebrim adhesive will survive the autoclave. That has yet to be tested however, and we can't procure them either to test.
Thank you for your video very helpful but unfortunately at this moment I can not afford the materials is there another option available that will still protect each thank you
It looks like Amazon also sells the material but unfortunately it comes in BULK quantities (search "sterilization wrap). We really cannot safely recommened using any other material because we havent tested it ourselves. We will keep looking for a suitable less expensive alternative and get back to you.
MÜLIBEX thank you so much for responding so fast stay safe
@@adleeadle4028 we initially got this material from the local hospital if you know someone that works in the operating room or surgical processing department, this material is literally discarded once the sterile instruments are transferred to the OR once they remove the sterilization wrap. Many OR's are currently recycling the material. They may be able to get you a "free" discarded sample that has been sterilized.
MÜLIBEX I think the one offered on Amazon is grade 100 only. Buyers should read the item description carefully before buying it.
H600 vs H100 doesn’t mean less filtration per se. He have had great success with the H100 and have been able to source it in bulk. So we have divided it up in small quantities to offer to other making masks. www.rydge.tech/product/h100-40x40-sterilization-wrap-sheets/
I don't see the pattern. I want to make this but I need the pattern. Thanks
So sorry we missed this message! Here is the pattern: cdn.shopify.com/s/files/1/2700/4900/files/maskpatterntemplate.zip?v=1585777693
Is poly bobbin thread sufficient?
We're using a 100% Polyester thread - (size 69/Tex 70/Gov E) so pretty durable. We are not sure about lighter Poly thread though, but if you arent going to autoclave it, the lighter poly threads should be just fine with the double stitching.
how breathable is this material?
It's very much like the existing N95 without a respirator valve. Same feel.