How many critical workers would a city need to protect? How much indoor space is there? What data would a government want on day one of a crisis?
Planning stockpiles of masks, filters and supplies starts with estimates nobody has made carefully.
Output: A transparent estimate with sources and uncertainty ranges.
Define exactly the quantity you want to estimate.
Find the data sources and note their limits.
Do a rough back-of-envelope version first.
Refine the input you are least sure about.
Present one clear chart and a sentence on uncertainty.
All steps done
Share what you made, then try another project. The PDF version has room for notes.
Reusable respirators could protect essential workers in a severe pandemic. Many projects here are about evidence, communication and distribution.
A great mask that leaks at the sides protects far less than people think. Make a clear, visual guide to fitting a respirator and the most common mistakes.
The source author’s top priority. Ideas range from DIY measurement to retrofit kits and modelling tools, and most need no lab.
