Choose your design for a custom face mask. Choose your number according to the design in the picture. Masks come with filter sheet, which is made from non-medical grade filter material. 1500 filtration level. Non HEPA filter. Filters out ultra fine particles, cough and sneeze, smoke, pet dander, pollen, bacteria, viruses, mold spores, dust mite debris, household dust, lint, and exhaust particles. AlishaLynn does not guarantee filter is 100% effective for all substances.