ProperFit Clothing Mask


The ProperFit Clothing Co. Mask is a cloth mask that has an integrated pocket for replaceable PM2.5 filters.



  • ¼ yard tightly woven, non-stretch fabric, such as denim, duck cloth, canvas, or twill
  • ¼ yard lining minimal stretch cotton, cotton-blend fabric (can be softer and thinner than outer fabric). What fabrics are best for mask making?
  • Extra wide double fold bias tape (can purchase or can be made)
  • 1/16 inch cord elastic or 1/8 inch braided elastic. (approx. 24 inches per mask)
  • 3-1/2 to 4 inch plastic coated ¼ inch metal bendy strip (or 2 heavier plastic coated twistties).


  • Sewing Machine
  • Scissors
  • Bias Tape Folder (If you need to make your own Bias Tape)

Assembly Instructions

This design is very well documented with a step by step guide and video, but the pattern is commercial and costs 2.99. If you have a supply of PM2.5 Filters it is well worth it, but if you are improvising the filter material as well, you may want to consider another mask.



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