Catherine Clase 2023-10-25 Catherine Clase 2023-10-25

A call for a return to school mask mandates

Catherine Clase 2022-06-17 Catherine Clase 2022-06-17

Better masks. How do the different types compare?

Catherine Clase 2022-06-08 Catherine Clase 2022-06-08

What now with masks? Why you should keep wearing the best mask available

Guest User 2021-08-05 Guest User 2021-08-05

Getting the most from PPE for health care workers

It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

Guest User 2021-06-10 Guest User 2021-06-10

A year in mask making...

It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

Guest User 2021-05-28 Guest User 2021-05-28

A second take on double masking

Guest User 2021-03-13 Guest User 2021-03-13

Caution: mask brackets may reduce the efficiency of cloth or medical masks

Guest User 2021-03-05 Guest User 2021-03-05

Charles de Lannoy and Catherine Clase of CEPEM on safer singing for children

It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

Guest User 2021-03-02 Guest User 2021-03-02

Barb Round writes about her mask making journey

Guest User 2021-03-01 Guest User 2021-03-01

Joan Fearnley and Catherine Clase update advice to choir directors on singers' masks

Guest User 2021-02-11 Guest User 2021-02-11

CDC publishes new evidence, updates guidance

Guest User 2021-02-08 Guest User 2021-02-08

Wear a mask while exercising outdoors: here's why

Guest User 2021-02-05 Guest User 2021-02-05

Smarter use of better cloth masks

Guest User 2021-01-29 Guest User 2021-01-29

Making better PPE and cloth masks: an opportunity for Canadian manufacturing

Guest User 2021-01-29 Guest User 2021-01-29

Double masking?

Guest User 2020-11-21 Guest User 2020-11-21

What is industry-grade polypropylene and where can I get it?

It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more.

Guest User 2020-10-29 Guest User 2020-10-29

Anthony Fauci says that multiple lines of evidence support the effectiveness of masks

Guest User 2020-10-24 Guest User 2020-10-24

Why did we recommend 2 to 4 layer cotton for community cloth masks?

Guest User 2020-10-24 Guest User 2020-10-24

Here's our most concise explanation of the filtration properties of cloth!

Guest User 2020-10-24 Guest User 2020-10-24

Looking for the science behind our cloth mask recommendations?

Mask Evidence