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A pack of 10 PM2.5 filters that you can insert into your Kitty Came Home face mask.

You can simply slip it in behind the first pocket, or fold it into the gussets in the outer mask.

When fitting into our Standard or Small size face masks you may need to fold the corners of the filter or trim with scissors (leave some of the original edge so that the filter layers stay together).

If you purchase this with other products to a total value of $50 or more, shipping is free. If you purchase these alone the postage will be calculated during checkout.