Mask efficacy comparison
The difference in mask gaps is significant.
| 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 |
The fit of the mask makes a huge difference.
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 study by the Center for Health-Related Aerosol Studies, Department of Environmental Health , University of Cincinnati , Cincinnati, Ohio which demonstrates in great detail the value of wearing a mask with reduce air gaps. Performance of an N95 Filtering Facepiece Particulate Respirator and a Surgical Mask During Human Breathing: Two Pathways for Particle Penetration
The Connecticut Biotech Secure Fit mask frame is made exactly to your facial measurements insuring a significant reduction in air gaps without sacrificing comfort.