These masks are made from soft textured materials that are resiliently stretchable. This allows the mask to conform easily to varying facial features and sizes. They seal around the nose and mouth, making a good seal and comfortable fit.

Filter replacement:

The effective working life of the mask filter depends on several factors. These are the length of time that the filter is actively working ad personal hygiene levels. Taking these factors into account, we recommend replacing the filter at least once a week or sooner with heavy use.

Please not that the filter is NOT included, but the masks include a pocket where they can be inserted.