Face mask – fast, cheap reusable

Stay up to date with everything that is happening in the wonderful world of AM via our LinkedIn community.
Viewing 1 post (of 1 total)
  • Author
  • #99000
    Manfred Ehresmann

    <div class=”ThingPage__description–14TtH”>

    WARNING: The use of the supplied models is not an equivalent protection to a FFP protection mask.

    WARNING: This ISM (improvised surgical mask) is neither tested nor certified by any offical health organisation. This ISM is an improvised fallback in case of a pandemic where surgical masks are no longer available.

    A single mask set is printable in little over 1 hour.

    A simple ISM (improvised surgical mask) has been designed, for very fast and cheap production with common FDM 3d printers. A shell + insert principle is applied, which are used to secure a to be selected filter media. The filter material is single use. The pieces can be cleaned with soap water and are reusable. The insert is able to fix a cotton pad as potential filter material.

    Options for customization
    Filter materials
    Scale in slicer to your needs

    Parts are optimized for printing via vase mode of a common FDM 3D printer. This produces a single walled pieces, with wall thickness of 0.4 mm, which can be air tight.1
    As these are single filament sheets cleaning is easy and effective. Soap water with subsequent rinsing is suitable for cleaning after use. Common 3D printing materials are not negatively affected by the use of soap water or other disinfectants.
    Additionally, vase mode allows for very fast and material efficient prints of large volume pieces.
    The improvised surgical mask consists of a large outer shell and a small insert ring to fix the filter material.
    Filter material as well as selected a suitable strap are up to the user. The size of the filter material should be at least a square of 50 x 50 mm². Allowing for much reduced filter material consumption.
    High quality filter materials are to be preferred: HEPA, anti microbial etc. Inform yourself of potential alternatives.


    HINT: For filter material selection, check here: https://smartairfilters.com/en/blog/best-materials-make-diy-face-mask-virus/


    Material: Any

    Layer height: 0.2  – larger layer height may lead to holes

    Printing Mode: Vase-mode / spiralize outer contour

    A full data set of other models of this kind is available here: https://www.thingiverse.com/thing:4245271


    The improvised surgical mask is intended to reduce the dispersal of aerosol of the wearer (reverse isolation). This it is not a self-protection device, its effectivity is dependent on the quality of the used filter material. The use of additional filter layers may enhance the effectivity.

    For example the distribution of the corona-virus happens through aerosols. Aerosols are produced during talking, coughing and sneezing. These aerosols can come in contact with mucus membranes of contact persons. The aerosol droplets can further contact and subsequently contaminate surfaces. Direct contact with these surfaces that contain virally contaminated secretions and subsequent hand-mouth-nose contact may also lead to contraction.

    The wearing of a improvised surgical mask may reduce contagion paths of the corona infection. Thus, it is sensible to wear a surgical mask for any contact with persons of the risk group to reduce the spread of aerosol droplets to the contact person.

    <div class=”ThingPage__description–14TtH”>



Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.
Research 2022
Polymer AM Market Opportunities and Trends

741 unique polymer AM companies individually surveyed and studied. Core polymer AM market generated $4.6 bi...

Back to top button

We use cookies to give you the best online experience. By agreeing you accept the use of cookies in accordance with our cookie policy.

Privacy Settings saved!
Privacy Settings

When you visit any web site, it may store or retrieve information on your browser, mostly in the form of cookies. Control your personal Cookie Services here.

These cookies are necessary for the website to function and cannot be switched off in our systems.

In order to use this website we use the following technically required cookies
  • wordpress_test_cookie
  • wordpress_logged_in_
  • wordpress_sec

Decline all Services
Accept all Services



Join industry leaders and receive the latest insights on what really matters in AM!

This information will never be shared with 3rd parties

I’ve read and accept the privacy policy.*