This is a filter and has to be inserted into the mask pocket.
A local company producing Nonwoven cooperated with Stellenbosch University to develop an interim minimum requirement that would be suitable for masks to be worn by anyone other than medical personnel.
The filter is designed by trapping any particle that is 5 microns and above. The real holdout is 95% effective above droplets of 5 microns.
ISO 14644-8 approved ﬁlter is reusable up to 5 times.
How to reuse: Remove the filter from the mask, place in a bowl and pour boiling water over it and leave for at least 5 minutes. Leave ﬁlter to air-dry, once dry ready to reuse again. Once the filter has been sterilised 5 times, discard it after sterilising and insert a new filter which should be sterilised before use.
Do not squeeze or hand-wash the filter. The delicate structure may be damaged.
Pieces 100MM x 120MM