inCiTe Micro-CT Photo Friday: Flannel Sample

How long  does it take before a cloth mask becomes inefficient as protection? We used inCiTe Micro-CT to see a small flannel cloth sample. 

Flannel is a soft woven fabric that is originally made from carded wool or worsted yarn, but is now made from either wool, cotton, or synthetic fiber. Flannel can be found in any clothing item, especially in cloth masks – yes, those ones we have been all using to prevent the spreading of COVID-19.

Cloth masks have many advantages, such as affordability, reusability, and longevity. They effectively stop fluids from coughs and sneezes, making their overall protection higher1. It is recommended to change the mask every 8 hours and should wash it regularly1.

But do you know how long it takes before a cloth mask becomes inefficient against viral protection?

With inCiTe™ Micro-CT, we were able to see a small flannel cloth sample down to its fibers because some of our collaborators wanted to observe how multiple washes affect a cloth mask.   

Specialists advise that masks should be washed regularly and discarded if you notice any visible deterioration.  Visit the Health Canada website for more info on how to properly storage and wash cloth masks.


  1. Kluziak, M. & Miszewska, D. (2020). Coronavirus Mask Calculator. Retrieved from

Sign up for email updates

KA Imaging is committed to protecting and respecting your privacy, and we’ll only use your personal information to administer your account and to provide the products and services you requested from us. From time to time, we would like to contact you about our products and services, as well as other content that may be of interest to you. If you consent to us contacting you for this purpose, please tick below to say how you would like us to contact you:
You can unsubscribe from these communications at any time. For more information on how to unsubscribe, our privacy practices, and how we are committed to protecting and respecting your privacy, please review our Privacy Policy.

By clicking submit below, you consent to allow KA Imaging to store and process the personal information submitted above to provide you the content requested.

Sign up for email updates