The effect of mask wearers stubble
If you have forgotten to shave today or your preference is designer stubble then that could reduce the effectiveness of filtering face pieces and half masks. The Health and Safety Executive carried out tests to show that the effect on protection is quite specific to the mask/wearer combination. Protection could be significantly reduced where stubble was present beginning within 24 hours from shaving and generally worsening as facial hair grew. Statistical analysis predicted this could reach an unacceptable level for all of the masks that were tested.
The Health and Safety Executive found that the current guidance advising being clean shaven in the area of the mask seal is justified.
Matthew Winder, APIL Senior Litigator member based at our Lancaster, Kendal and Barrow offices