mask safety

Masks for Children During the COVID-19 Pandemic

In this post Hope Metzler discusses masks for children including: six considerations for making and/or buying masks for children, information about when children should and should not wear masks, and an in depth look at the alternatives to masks for infants. This is part of a series of guest blog posts where we get a […]

A Breathable Combination: An N95 plus a NWPP Mask Cover

As a result of the COVID-19 pandemic, there are global shortages of N95 respirators resulting in large scale adoption of procedures and policies for the extended use and re-use of N95 respirators. In this post we do a deeper dive into the quantitative breathability data for the MakerMask: Cover, a breathable N95 mask cover. The […]

Label Me A Face Mask: FDA Labeling Requirements

Almost everything comes with a label, from food to clothing to medicine to medical devices, and according to the FDA, face masks and cloth face coverings should come with labels too. More specifically, the Emergency Use Authorization for Face Masks released by the FDA April 24, 2020, includes labeling requirements for masks that are being […]

The Big Four: Criteria for Fabric Mask Materials for COVID

This deep dive post looks into the “Big Four” criteria evaluated in preliminary assessments of community mask materials: material characteristics, breathability, water-repellence, and disinfection options. More specifically, we focus on nonwoven polypropylene (NWPP), which is commonly used in commercial face masks. Although ideal medical grade NWPP is not currently available for community use, NWPP is commonly available at different weights and grades for other household and/or commercial purposes, such as reusable grocery bags. Here we take a more in-depth look at the 4 preliminary criteria considered when evaluating potential sources of NWPP.

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