A method of hand hygiene compliance enforcement and hand hygiene system comprising at least one dispenser unit that has an interior chamber containing a volume of hand soap or sanitizer and a dispenser nozzle configured to dispense a measured volume of hand soap or sanitizing material upon a triggering event. The dispenser also has a control unit mounted therein, the control unit is in electronic communication with the dispenser nozzle and has at least one identity sensor, at least one alarm indicator and at least one transmitter. The hand hygiene system also has at least one proximity sensor in electronic communication with the control unit. The proximity sensor is located a spaced distance from the at least one dispenser.

A method of hand hygiene compliance enforcement and hand hygiene system comprising at least one dispenser unit that has an interior chamber containing a volume of hand soap or sanitizer and a dispenser nozzle configured to dispense a measured volume of hand soap or sanitizing material upon a triggering event. The dispenser also has a control unit mounted therein, the control unit is in electronic communication with the dispenser nozzle and has at least one identity sensor, at least one alarm indicator and at least one transmitter. The hand hygiene system also has at least one proximity sensor in electronic communication with the control unit. The proximity sensor is located a spaced distance from the at least one dispenser.

An exemplary foam dispensing system includes a dispenser housing configured to be mounted below a counter, a spout configured to be mounted above a counter, a container supported by the dispenser housing, a pump in fluid communications with the container and configured to be mounted below a counter. The pump includes an air pump portion and a liquid pump portion. The pump also includes a mixing chamber. Liquid pumped from the liquid pump portion is mixed with air pumped from the air pump portion in the mixing chamber. A dispense tube is included that is configured to extend from the mixing chamber below a countertop to one or more mix media located above the countertop proximate an end of the spout. The one or more mix media are located near an end of the spout. An outlet nozzle is also provided and is located downstream of the one or more mix media.

An exemplary foam dispensing system includes a dispenser housing configured to be mounted below a counter, a spout configured to be mounted above a counter, a container supported by the dispenser housing, a pump in fluid communications with the container and configured to be mounted below a counter. The pump includes an air pump portion and a liquid pump portion. The pump also includes a mixing chamber. Liquid pumped from the liquid pump portion is mixed with air pumped from the air pump portion in the mixing chamber. A dispense tube is included that is configured to extend from the mixing chamber below a countertop to one or more mix media located above the countertop proximate an end of the spout. The one or more mix media are located near an end of the spout. An outlet nozzle is also provided and is located downstream of the one or more mix media.

Exemplary foam-at-a-distance systems include a spout, a container, and a foam generator having a suck-back mechanism located within the spout. The system includes a liquid pump chamber, an air pump chamber, a liquid conduit and an air conduit. The foam generator has a differential bore housing. The differential bore housing has a first portion with a first inside bore and a second portion with a second inside bore, wherein the first inside bore has a smaller diameter than the second inside bore. A piston having a seal extending from the piston that is in contact with the second inside bore is also included. A mixing chamber is located in the large bore. Movement of the seal in an upstream direction provides negative pressure in the second mixing chamber and draws in fluid from the outlet.

Exemplary foam-at-a-distance systems include a spout, a container, and a foam generator having a suck-back mechanism located within the spout. The system includes a liquid pump chamber, an air pump chamber, a liquid conduit and an air conduit. The foam generator has a differential bore housing. The differential bore housing has a first portion with a first inside bore and a second portion with a second inside bore, wherein the first inside bore has a smaller diameter than the second inside bore. A piston having a seal extending from the piston that is in contact with the second inside bore is also included. A mixing chamber is located in the large bore. Movement of the seal in an upstream direction provides negative pressure in the second mixing chamber and draws in fluid from the outlet.

In an exemplary method of monitoring usage of an electronically operated dispenser, a dispensing mechanism is operated by an internal controller of the dispenser in response to user activation of an actuator of the dispenser in communication with the controller. In response to operation of the dispensing mechanism, dispenser data is written to an internal dispenser memory in wired communication with the controller, with the controller and the dispenser memory being electrically connected with and powered by a power source. The dispenser memory receives a wireless interrogation signal from an external reader and collects energy from the wireless interrogation signal. In response to receipt of the wireless interrogation signal, the dispenser memory wirelessly transmits the written dispenser data to the external reader, with the dispenser memory being powered by the collected energy.

In an exemplary method of monitoring usage of an electronically operated dispenser, a dispensing mechanism is operated by an internal controller of the dispenser in response to user activation of an actuator of the dispenser in communication with the controller. In response to operation of the dispensing mechanism, dispenser data is written to an internal dispenser memory in wired communication with the controller, with the controller and the dispenser memory being electrically connected with and powered by a power source. The dispenser memory receives a wireless interrogation signal from an external reader and collects energy from the wireless interrogation signal. In response to receipt of the wireless interrogation signal, the dispenser memory wirelessly transmits the written dispenser data to the external reader, with the dispenser memory being powered by the collected energy.

A system for optimizing a timing of a flush valve is provided. The system includes a flush valve comprising a flow area and a solenoid configured to open the flush valve, at least one pressure sensor configured to measure a pressure in the flush valve, and at least one controller in communication with the at least one pressure sensor and the solenoid. The at least one controller is programmed or configured to control the solenoid to open the flush valve for a flush time in response to a flush request, measure a pressure in the flush valve to obtain at least one flush valve pressure, adjust the flush time based at least partially on the at least one flush valve pressure, resulting in an adjusted flush time, and control the solenoid to open the flush valve for the adjusted flush time in response to a flush request.

A device for reducing a level of infectious agents present on one or more hands of a user. This device may reduce the level of infectious agents present on one or more fingers and/or thumbs of a user, specifically reducing a level of infectious agents present on the distal aspect of the digit; including, but not limited to an underside of a nail plate, and an area of hyponychium skin between a free margin of the nail plate and an onychodermal band of a digit, such as for example, a finger, thumb, or toe.