|sample/fabric||<300 nm average ± error|
|N95 (no gap)||85 ± 15|
|N95 (with gap)||34 ± 15|
|surgical mask (no gap)||76 ± 22|
|surgical mask (with gap)||50 ± 7|
In a recent study of masks performed by the American Chemical Society, the fit of the mask and absence of air gaps can make a huge difference regardless of mask type.
Even an N95 mask, which is considered the premiere filtration and barrier to infection, drops to around 34% effective when not fitted correctly.
Surgical masks drop to 50% when there are gaps between the face and outside environment.
Mask frames are designed to reduce gaps.
Here is a photo of a mannequin wearing an early prototype of our Secure Fit mask frame. Here are some additional photos.
The mask being worn is an ASTM level 2 procedure mask.
Notice how the side gaps are almost completely eliminated.
Please note: This photo does not feature the new comfort straps that are now included in every purchase.