P-FAB-4 Face Mask

The P-FAB-4 face mask includes a main mask body, a pull bracket, and an insert component.

The P-FAB-4 face mask has been designed for use with different types of sheets of filtration material, such as cotton fabric.

The P-FAB-4 face mask is also designed to work with a range of filtration material thicknesses, such as layering fabric (like cut-up t-shirts) over other filtration materials (such as shop towels).

The P-FAB-4 mask comes in two main versions.

The first version includes sideholes to improve air flow. The second version does not include sideholes, so as to make 3D printing faster.

The main mask body comes in four different versions.

Two main mask body versions are available with sideholes. One includes the standard face shape, while the second includes a larger cutout for a wearer’s nose, across which filtration material can be draped for improved comfort.

The other two main mask body versions are available without sideholes. These also include a standard version and one with a larger cutout for the wearer’s nose.

Please note: MetaMotive believes that the “with recess for nose” versions with larger cutouts for a wearer’s nose are the preferred versions, are more comfortable, and are recommended for most users, but all versions are being offered here for download and evaluation.

All versions of the P-FAB-4 face mask use the same pull bracket.

One pull bracket is used for each face mask assembly.

There are two different versions of the insert component. Both versions are compatible with all versions of the P-FAB-4 face mask.

The version on the left is the quickest to print. The version on the right provides additional support of filtration material away from the user’s face.

Please note: MetaMotive believes that the larger version with additional support for filtration material is the preferred version and is recommended for most users, but both versions are being offered here for download and evaluation.

It is recommended to 3D print the main mask body, the pull bracket, and the insert components in the orientations shown.

In these orientations, there is no need for any supports or bridging.

Prototypes were 3D Printed with 1.2mm wall thickness and 15% infill, though you should adjust your settings for your own printer and selected material.