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 Guardian Double Seal

 
The Double Seal was specifically designed to allow people with a small faces or a slim face, especially in the temple area, to seal better. The double seal is visible in the picture left along the top of the mask. It also follows along the sides down toward the chin area (under the top seal). Notice the oral nasal cavity and equalizing system in the lower part of the picture.

 
Pictured left, one finger is on the outer seal with the other finger on the inner seal.

The Double Seal ensures everyone gets a good seal.