covid-19 cover mask

cults3d

This Mask design is good, but not that good for long breathing and exercise. I'll modify it for better breathing intake, and add water drop resist cover. New design would be modified for motor cycle riders with riot helmet. Mask for who needs saving medical masks. Primary Filter material is cutting medical mask, Mask_1 filter cutting size 50mm*50mm. Mask_2 filter cutting size 55mm*55mm (Mask_2 is made with bigger intake for better breathing) You can adjust the Z axis scale of Mask_Cover for proper tightening. It would be better sealing if round the edge with rubber/ silicon stripping. Or you can download the Seal.stl file for printing TPU sealing. Tissue or toilet Paper could be used as filter material in an emergence, better than nothing. 針對口罩材質節約使用設計的口鼻覆蓋式口罩， 建議邊緣可加黏橡膠或矽膠膠條，增加氣密性。 或可使用TPU材質列印Seal.stl檔案作為密封圈使用 Mask_1 需要剪裁使用 50mm*50mm 的過濾面積 Mask_2 需要剪裁使用 55mm*55mm 的過濾面積，有更輕鬆的呼吸感 若物資缺乏緊急時刻也可用衛生紙廁紙或可透氣的材質來做使用。 內蓋的Z軸厚度百分比調整，可以調整出適合的緊配度。