Abstract: The present disclosure generally relates to a device for dispensing a volatile active material that may be direct current (DC) (batteries, fuel cells, solar cells, and the like) powered or chemically powered. More particularly, the present disclosure relates to a battery operated insect repellant device that is easily portable and is capable of providing a sufficient vaporous stream of a volatile insecticide and/or other active agent, to protect a user. The battery operated insect repellant device is configured to operate at high efficiency such that a high percentage of battery energy input into the device is converted to heat used to volatilize the insecticide or other active agent.

Abstract: A screen for an electrochemical cell is fabricated by providing an interwoven wire mesh, and electroplating nickel onto the mesh, which bonds with the joints to create a screen usable with an electrochemical cell. The mesh can first be rolled to partially bond the wires prior to the electroplating step.