Free Surgical mask holder (3M 6000s Compatible)

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===========you can free download via https://www.thingiverse.com/thing:4183197  ================== To save disposable masks from being used up too quickly, avoid direct contact with the surgical mask while using it. Create a physical barrier to prevent saliva from penetrating through the surgical mask. Additional resources required: A) 47.5mmX47.5mm Surgical Mask B) 2x Rubber Band C) Plastic wrap (if blanking one end) D) A 3M 6000s / 6503 / 7503 Tools Required: A) Clean Hands B) Scissor C) Ruler Printing advisory: The cover and vent can be printed in 0.2mm layer height (around 45 minutes). For better quality, print at 0.1mm layer height (1hr 20min). Infill Density 50~60%. No structure support or Build Plate Adhesion needed. Recommended printing temp 195C, build plate temp 50C (55C for 10 hours). Caution: Take your own risk. Although I have multiple tests about my device (test ok no leak and very minor defect), my design/invention isn't certified or being tested by official/government or professional guy. Possible defects may be created by a different type of machine quality or by the unstable process during printing. Please always ensure no leakage of air with the mask (Do "fit test" on your own -the test that hold your palm cover whole mask's outlet, and then breath to check no leakage). Misuse of the devices may result in serious infection/health damage or even death. Always ask advisory from professional personnel for user safety. DO NOT SLEEP WHILE YOU ARE USING THIS DEVICE, OR IT MAY CAUSE AN ASPHYXIA (DIFFICULT IN BREATHING) TO YOU, AND YOU SHOULD ALWAYS STAY AWAKE AND PAY EXTRA ATTENTION WHILE YOU ARE UTILIZING THE DEVICE AT ANY PLACES AVOID GETTING WET Demonstration Video: https://youtu.be/kH4MBXuRZS4 shows how to install and uninstall the vent. https://youtu.be/sYWVykXa65Q shows no cover version (also work but lack of physical impact protection). https://youtu.be/CbrtWpDdLKk shows how blanking a vent with plastic cling wrap works. Updated: 2/23/2020 11:53 PM UTC+8