MakerMask

Mask Materials

Research Highlights: NWPP Filtration Efficiency from Long et al 2020

This post is the first in a series of “Research Highlights” where we discuss select data and research from the literature in the context of community mask making efforts. In this post, we take a look at the filtration and breathability data for nonwoven polypropylene (NWPP) mask materials presented in: Long KD, Woodburn EV, Berg […]

Fluid Resistance: Mask Material Test Results

New test results show that upcycled spunbond nonwoven polypropylene (NWPP) mask materials can provide high-level (ASTM Level 2) fluid resistance. MakerMask has supported the use of spunbond NWPP in homemade mask designs because of its unique combination of breathability and hydrophobicity, or water resistance. Thanks to community contributions, we were able to put the fluid […]

Face Masks for COVID-19: Background Information

El equipo del proyecto MakerMask ha revisto literature extensiva sobre la ciencia y fabricación de respiradores aprobados por NIOSH. Selecionamos un diseño de múlitples capas que balance capacidades de filtración aumentado con permeabilidad para respirar. Las capas exteriores de polipropileno no tejido (PPNT) spunbond usan el mismo tipo de material usado en máscaras comerciales de grado médico, proveendo resistencia al agua para bloquear transmisión de gotitas y filtración mecánica por la estructura de las fibras.


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