Hacker News new | ask | show | jobs
by zzzcpan 2250 days ago
> There's no way 3 rubber bands turns a surgical mask into an N95 mask. There are studies that look at the abilities of different materials, removing the seal component entirely, and the two masks have very different profiles.

They don't have different profiles. Surgical masks too use nonvowen polypropylene meltblown filtering material covered in polypropylene spunbond. It is pretty much as good as it gets in terms of materials. The only way to do better at material level is to increase the surface area to be able to make the material thicker, like folding more of such material in enclosures, also adding a valve for breathing out to be able to remove the inner spunbond layer in favor of a thicker meltblown layer. But none of it matters in practice much, because much bigger problems are airtight seal, easiness to breath, to talk, to wear, convenience, proper use, things like that.

However, I don't expect proposed solution to work for most people, the surface area is too small and will make it too hard to breath.

But please stop this "dangerous information" bullshit. Your comment is much more ignorant, misleading and dangerous, than the website.