| CPC F24F 13/105 (2013.01) [F16K 15/14 (2013.01); F16K 15/1401 (2021.08); F16K 31/02 (2013.01); F24F 2221/20 (2013.01)] | 20 Claims |

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1. A system comprising:
a housing;
at least one shell mounted to the housing, the at least one shell comprising a flap mold; and
at least one Dielectric Elastomer Actuator flap, the at least one Dielectric Elastomer Actuator flap being bound on at least two sides in the housing, and a corner of the Dielectric Elastomer Actuator flap being unbound to the housing, wherein the corner of the Dielectric Elastomer Actuator flap is configured to form a seal with the flap mold of the at least one shell, wherein applying a voltage to the Dielectric Elastomer Actuator flap causes the Dielectric Elastomer Actuator flap to open the seal with the at least one shell.
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