3M 6xxx7xxx Mk2口罩外科口罩適配器，帶口罩切割器

3M Respirator Surgical Mask Adaptor for 3M 6xxx/7xxx Mk2
To make two full assemblies for one 3M respirator, you will need to print two copies of each following models: <3M Mask Adaptor_Spacer_Mk2_墊片.stl>, <3M Mask Adaptor_Shroud_Mk2_濾盒蓋.stl>, <3M Mask Adaptor_Adaptor_Mk2_濾盒轉(zhuǎn)接頭.stl>.
Compared to Mk1 ( Mk2 design uses 46mm diameter filter disk, expanding the filtration area by ~60% and allowing the user to breathe easier.
Each conventional surgical mask can be cut into 6 filter "disks", effectively increasing each mask's life span by 3 times. Inlet of the filter shroud diverts airflow 45 degrees towards the user's face, further lowering the chance of contact by aerosol coming from the front side. External surface of the filter can can be disinfected by directly spraying >60% ethanol/isopropanol without damaging the hydrophobic property of the mask. The size and shape of the filter can have been optimized for ease-of-use and aesthetic purposes.
If you do not have direct access to a 3D printer, you can try these following commercial 3D printing services:
For China Mainland:
For the United States:

3M 6xxx/7xxx系列呼吸面罩至外科口罩轉(zhuǎn)接頭Mk2
一個(gè)呼吸面罩搭配兩個(gè)組裝完成的濾盒使用，需要打印以下模型每個(gè)兩份：<3M Mask Adaptor_Spacer_Mk2_墊片.stl>, <3M Mask Adaptor_Shroud_Mk2_濾盒蓋.stl>, <3M Mask Adaptor_Adaptor_Mk2_濾盒轉(zhuǎn)接頭.stl>。
和Mk1型號(hào) (
每個(gè)標(biāo)準(zhǔn)外科口罩可以被裁剪成6個(gè)濾片，可以有效延長(zhǎng)每個(gè)口罩的使用壽命3倍。濾盒的進(jìn)氣口被設(shè)計(jì)為45度角偏向使用者，可以更有效防止正面的氣溶膠接觸。濾盒的外部可以直接噴上大于60%酒精或異丙醇擦拭消毒，不會(huì)影響外科口罩濾片表面的疏水性能。濾盒的大小以及形狀經(jīng)過(guò)優(yōu)化設(shè)計(jì)，考慮到了美觀和使用的方便性。
如果您沒有3D打印資源，可以嘗試以下的商用3D打印服務(wù)：
中國(guó)大陸：
美國(guó)：

Disclaimer: By CC BY-NC 4.0, you may not use this design for commercial purposes. When assembled and worn correctly, this design may only provide the same or lower protection level your material of choice may offer you. The efficacy of this design has not yet been tested to warrant protection agait airborne diseases. This design has not been reviewed or approved by any health professional or official, please use it at your own risk. The choice to use this design for any particular intended use is the sole and exclusive respoibility of the user; and I shall in no event ever have any respoibility for, nor incur any liability for any particular use or application of this design. For your safety, avoid high-risk contact as much as possible.
根據(jù)Creative Commo CC BY-NC 4.0許可，請(qǐng)勿將此設(shè)計(jì)用于任何商業(yè)用途，例如售賣此設(shè)計(jì)或售賣此設(shè)計(jì)的打印成品。當(dāng)安裝和佩戴正確時(shí)，此設(shè)計(jì)只可以提供與濾片材料相同或更低的防護(hù)等級(jí)。該設(shè)計(jì)并未經(jīng)過(guò)實(shí)驗(yàn)驗(yàn)證防止空氣傳播的有效性，亦未經(jīng)任何醫(yī)學(xué)專家或權(quán)威的評(píng)估和許可，使用所帶來(lái)的風(fēng)險(xiǎn)請(qǐng)自行承擔(dān)。為了您的個(gè)人安全，請(qǐng)盡量避免高風(fēng)險(xiǎn)接觸。

Printing Itruction:
打印說(shuō)明：
3M_Mask_Adaptor_MaskCutter_Mk2_口罩裁剪模具.stl x1
This mask cutter helps you to make filter disks, print it with any layer height or material.
這個(gè)口罩裁剪模具用來(lái)幫助裁剪正確尺寸的濾片，任何層高或者材料均可。
3M Mask Adaptor_Spacer_Mk2_墊片.stl x2
3M Mask Adaptor_Shroud_Mk2_濾盒蓋.stl x2
3M Mask Adaptor_Adaptor_Mk2_濾盒轉(zhuǎn)接頭.stl x2
Please use at most 0.1mm layer height, PLA or PETG filament, and >80-100% infill to eure a tight fit of the assembly. Print one part at a time to minimize the chance of stringing.
請(qǐng)使用小于0.1mm的層高， PLA或PETG塑料，以及大于80%至100%的填充打印以保證氣密性。逐個(gè)打印每個(gè)零件，避免零件間的拉絲。