Abstract: Portable electronic devices having an outer layer comprising cork. Such portable electronic devices are portable, compact, and relatively lightweight. The outer layer comprising cork provides improvements in functional performance and ergonomic benefits as compared to hand warmers having polymer or metallic outer layers. The portable combined hand warmer and power bank with an outer layer comprising cork exhibits improvements in heat retention, heat distribution, and limited heat transfer to the initial touch. The outer layer comprising cork is comfortable and relatively soft and grippy as compared to the plastic or metallic outer layers of conventional hand warmers. The portable electronic device having the unique outer layer comprising cork also repels and wicks moisture as compared to other hand warmers having plastic and/or metallic outer layers. The outer layer comprising cork can also be relatively anti-microbial and germ resistant.

Abstract: A full face mask and snorkel can include a full face mask and a rigid snorkel attached to the side of the mask. The side location of the ridged snorkel avoids peripheral ducting of air around the full face mask. The full face mask includes a main peripheral full face seal coupled to the mask's rigid support structure. The full face mask includes a separation seal dividing the full face mask into at least an upper chamber. The snorkel is affixed to the side of the full face mask at a location proximate to where the separation seal meets the main seal. A full face mask and snorkel can also include an exhalation valve located within the snorkel and proximate to the mask so as to avoid a volume of respirated air within the snorkel from being reinhaled into the lower chamber of the full face mask.

Abstract: A full face mask and snorkel can include a full face mask and a rigid snorkel attached to the side of the mask. The side location of the ridged snorkel avoids peripheral ducting of air around the full face mask. The full face mask includes a main peripheral full face seal coupled to the mask's rigid support structure. The full face mask includes a separation seal dividing the full face mask into at least an upper chamber. The snorkel is affixed to the side of the full face mask at a location proximate to where the separation seal meets the main seal. A full face mask and snorkel can also include an exhalation valve located within the snorkel and proximate to the mask so as to avoid a volume of respirated air within the snorkel from being reinhaled into the lower chamber of the full face mask.