$2.00
Available individually. Ships the same or next business day when ordered on their own.
PM 2.5 filters fit into our Face Mask With Filter Pocket style which provides additional face covering versatility for commuters and outdoor enthusiasts. Due to the size, these inserts do not fit in our Face Mask With Moisture Barrier style.
These filters are made with 5 layers with the center layer being activated carbon.
Remove any filters before washing. It is suggested to discard the filter after one week of constant usage.
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© 2021 Knotty Tie Co..
926 W 10th Ave. Denver, CO USA
POS and Ecommerce by Shopify
Adult Standard | Adult Small | Kids |
5" x 9" Fits most adults. |
4.5" x 8" Fits most petite women and young adults. |
4.75" x 7" Intended for kids ages 5-12 |
Regular | Small |
9.5” x 14” Fits most adults. |
8.5" x 14" Fits some petite adults and most kids. |
Skinny | Knotty | Classic |
2.25" wide | 2.75" wide | 3.5" wide |
Standard | Long | Extra-Long |
58" long | 62" long | 66" long |
Youth Self-Tied 52" long |
Ages 10+ |
Adult | Kids Pre-Tied | Baby Pre-Tied |
Self-tied style Adjustable for necks 14-18" |
Ages 2 and over 14" max adjustable velcro closure |
Ages 2 and under 14" max adjustable velcro closure |
S/M | L/XL |
Comparable to 0-14 in Women's sizing Comparable to Small or Medium in Men's sizing 31" wide at the waist 36" length |
Comparable to 16-26 in Women's sizing Comparable to Large or X-Large in Men's sizing 35" wide at the waist 39" length |