Abstract: Apparatus to limit exposure to pathogens. The apparatus includes two hinges connected by a hinge connector, a plurality of ribs, and mask material. The plurality of ribs includes at least a base rib and a top rib. A first end of each rib is connected to a first hinge of the two hinges and a second end of each rib is connected to a second hinge of the two hinges. The two hinges are configured to position and secure the top rib at multiple positions and configurations. The ribs are attached to the mask material.

Abstract: Apparatus to limit exposure to pathogens. The apparatus includes two hinges connected by a hinge connector, a plurality of ribs, and mask material. The plurality of ribs includes at least a base rib and a top rib. A first end of each rib is connected to a first hinge of the two hinges and a second end of each rib is connected to a second hinge of the two hinges. The two hinges are configured to position and secure the top rib at multiple positions and configurations. The ribs are attached to the mask material.

Abstract: A diaper-changing platform system is disclosed having a structural frame supporting member that receives a platform member. The platform member is configured with interlocking sections configured such that at least one interlocking section can be positioned to project from the platform member to enable an infant or toddler to sit on the interlocking section and is also configured to be positioned such that the platform member defines a generally flat surface enabling an infant or toddler to be positioned lying on the generally flat surface. A stroller for transporting an infant or toddler includes a frame and the diaper-changing platform system. The frame of the stroller receives the diaper-changing platform system when the platform member enables an infant or toddler to sit on at least one interlocking section to enable transporting via the stroller the diaper-changing platform system. A weight supporting system including usage of supporting ribs and exoskeletons is included.

Abstract: A diaper-changing platform system is disclosed having a structural frame supporting member that receives a platform member. The platform member is configured with interlocking sections configured such that at least one interlocking section can be positioned to project from the platform member to enable an infant or toddler to sit on the interlocking section and is also configured to be positioned such that the platform member defines a generally flat surface enabling an infant or toddler to be positioned lying on the generally flat surface. A stroller for transporting an infant or toddler includes a frame and the diaper-changing platform system. The frame of the stroller receives the diaper-changing platform system when the platform member enables an infant or toddler to sit on at least one interlocking section to enable transporting via the stroller the diaper-changing platform system. A weight supporting system including usage of supporting ribs and exoskeletons is included.