What are KF94 face masks? Do they give more protection than KN95 masks?
They look similar, and they filter a nearly identical percentage of particles—95% versus 94%. This chart from 3M explains the differences between the N95 and “first class” Korean masks. The columns highlight these two types of mask.
On the metric that most people care about (filtration effectiveness), they’re nearly identical. In most circumstances, mask users will not care about a 1% difference in filtration.However, of the differences between the standards, the Korean standards are more similar to the EU standards than the US standards. For example, US certification agencies test filtering performance using salt particles, whereas European and Korean standards test against salt and paraffin oil.Similarly, the US tests filtration at a flow rate of 85 liters per minute, whereas the EU and Korea test against a flow rate of 95 liters per minute. However, these differences are minor
On the factor that most people care about (filtration) N95 and KF94 masks are nearly identical. However, there are small differences in other factors, such as breathing resistance and fit-testing.hope it helps you:]For more at [Bluna kids](https://worldmasks.net/)