Analysis · Surgical masks, KN95s, ...

Surgical masks perform at various levels

These are the ones we had access to.

Baseline:

• Due to our home lab setup, it's better to analyze the data in terms of how it performs relative to an N95 as a baseline.

• How close does it filter like an N95? Is it more breathable, as breathable or harder to breathe through than an N95?

• N95's breathability was measured at -31 cmH20 at 90L/m X 20mm diameter.

• The closer the breathability number is to 0 (i.e. -8 is closer to 0 than -80), the more breathable it is.