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[[Category:Projects]]
[[Category:Health and safety]]

=Introduction=
A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres, including fumes, vapours, gases and particulate matter such as dusts and airborne microorganisms. There are two main categories: the air-purifying respirator, in which respirable air is obtained by filtering a contaminated atmosphere, and the air-supplied respirator, in which an alternate supply of breathable air is delivered. Within each category, different techniques are employed to reduce or eliminate noxious airborne contaminants.

Air-purifying respirators range from relatively inexpensive single-use, disposable face masks sometimes referred to as a dust mask to more robust reusable models with replaceable cartridges often called a gas mask. 

=Challenges=
Adequate testing and certification are desirable, especially for DIY health equipment.

=Approaches=
Locally produced medical supplies can supplement mass produced supplies, or provide a remedy where none exists at all.  Several useful objects are provided in that spirit.
==By available filter==
==By mask type==
==Accessories==
* [https://www.thingiverse.com/thing:4553847 Face mask spacer] for ease of breathing and sensory difficulties.

=References=
* [https://3dprint.nih.gov/ NIH 3D Print Exchange]
* [https://www.grainger.com/product/MILLER-ELECTRIC-LPR-100-Half-Mask-Respirator-34C395 Miller Electric LPR-100 Half Mask Respirator]
* [https://en.wikipedia.org/wiki/Respirator Wikipedia: Respirator]