This is a long overdue post! Now that I have made the TAFF ladies’ size mask, I want to compare its fit with the Olson. Surprisingly, the Olson still fits better when I use it on its own with a PM 2.5 filter in the pocket. Although the TAFF fits my face dimensions better, the Olson wraps slightly below my chin, whereas the TAFF does not. However, the ponytail elastic ear loops on the Olson are too tight. Therefore, the TAFF lends itself better to double-masking since the KN95 will offer chin coverage. You can find the TAFF fitted mask pattern here and the Olson mask pattern here.