There is little to no evidence to show that coughing into your elbow prevents the spread of disease. Elbow-coughing has long struck me as a cop-out, but some posts on Twitter piqued my interest into digging around in the scientific literature. Thanks to Dr. Christine Peters and Dr. Lee Altenberg for the pointers to the […]
I've been teaching large lectures for many years. After the initial remote teaching phase of the pandemic management required most faculty to go back to in-person teaching. While most of my colleagues decided to do so maskless, I made the unpopular decision to wear N95+ respirators while teaching in class. Despite pushback on N95s from […]
It's March, 2023. Most of the world has "moved on from COVID" and stopped wearing masks. Here at York University, the YUScreen system was dropped last month and many of the door signs about COVID have been removed. But the fact remains that there are still plenty of reasons to wear a mask* in public. […]
The following are a set of preliminary tests I did to determine relative speech sound performance while wearing a mask. I'm particularly interested in the context of mask-wearing in a classroom, but this could be helpful in many other workplaces. I tested a number of masks in my dining room. Audio levels were measured using […]
[March 20, 2022 update] A version of the N95 motion was brought before YorkU Senate in January 2022 by Senator Patrick Phillips. It appears to have passed but has not led to subsidized distribution of N95s on campus. [Feb 2, 2022 update] The first motion (Recommendation for N95s) resulted in a recommendation email to all […]
I'm submitting the following four motions to my department's monthly meeting to see if we can set ourselves up for a safer return to campus. There are four motions: A recommendation for wearing N95 Funding for N95s A request for CO2 sensors A request for portable air purifiers (HEPA) Feel free to reuse and/or adapt, […]