Liner for a respirator mask

A respirator mask liner comprising:

• a flexible woven fabric sheet portion comprising a blend of a lower-elasticity first fiber blended with a higher-elasticity second fiber having higher elasticity than said first fiber, wherein said first fiber makes up about 95 to 98 percent of said mask liner by weight and said second fiber makes up about 2 to 5 percent of said mask liner by weight;
• an opening defined along an interior region of said fabric sheet portion, wherein said opening is configured to receive a portion of a wearer's nose and/or mouth;
• and
• said fabric sheet portion comprises a skin-contacting surface having ribbed and undulating pattern configured to obstruct airflow between said skin-contacting surface and the wearer's skin.

A respirator mask liner comprising:

• a flexible sheet portion having an outer perimeter region generally conforming to a shape of a respirator mask, and defining an inner opening along an interior region of said sheet portion, wherein said inner opening is configured to receive a portion of a wearer's nose and/or mouth;
• an anti-microbial substance incorporated at said flexible sheet portion, whereby said flexible sheet portion with said anti-microbial substance substantially inhibits growth of bacteria or microbes on said mask liner;
• and
• wherein said anti-microbial substance is incorporated at said flexible sheet portion by at least one chosen from:
• (i) anti-microbial spray application, (ii) anti-microbial bath dip, and (iii) incorporation of anti-microbial fibers woven into said flexible sheet portion.