Summary
Key points1 Uses household tissues as the filter.
2 Large filter area. This reduces the flow rate per area and allows more layers (12 – 16) to be used, thus increasing filtration efficiency.
3 Comfortable because the only thing against your skin is the tissue.
4 Shaped to fit snugly around the nose to make a good seal.
5 Everything you need is printed, apart from the filter itself. No need for rubber bands, elastic or shoelaces!
6 Adjustable side straps.
7 Only 15 grams of material (PLA) and 1 hour 8 mins to print.
The idea of this mask is to offer some protection from the coronavirus.
It consists of only 2 parts, the 3D printed bits and some kind of filter. It's designed to be used with normal facial tissues, the kind you can buy in many shops to blow your nose on. The finer the better.
It is absolutely not meant to replace a proper N95 medical mask. However, it will offer some protection where no other option is available. It's very simple and just holds the tissue snugly in place around your nose and mouth.
It is very economical in terms of material usage and takes just over an hour to print.
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