A pressurised liquid delivery assembly (1) having at least one liquid delivery module (2). Each module including a housing (3) and an associated compartment (4). The compartment locatable within said housing and moveable with respect to said housing to permit access by a user to said compartment. The compartment defining a space (15) adapted in use to receive a replaceable pressurised receptacle (25) containing liquid to be dispensed by said assembly. A liquid dispenser (30) operatively associated with said receptacle and adapted to dispense liquid. The dispenser including a conduit (31) extendable from a dispensing nozzle (32) to a liquid receiving connector. The liquid receiving connector adapted to releasably connect to said liquid receptacle in use.

A sanitizing spray system includes a Nitrogen generation system that produces Nitrogen used as a carrier gas source for spraying an alcohol-based disinfecting and sanitizing composition without flashing.

A back-mounted spray apparatus includes a storage container shaped to receive therein liquid to be sprayed. The storage container includes a pair of side handles integrally formed therewith and a central handle therebetween and integrally formed therewith. Actuation of a spraying assembly of the apparatus causes the liquid from the storage container to be selectively sprayed outwards therefrom.

The storage container has a lower or front peripheral portion that is arc-shaped in a direction extending between sides thereof according to one aspect. The backpack sprayer includes a frame member extending along a rear thereof and to which the storage container couples. The frame member has an aperture extending therethrough which is arc-shaped.

A horizontal frame member is cantilevered from a vertical frame member according to another aspect. The storage container has a lower portion within an inwardly-facing channel shaped to receive and couple to the horizontal frame member.

An electrostatic fluid delivery system that is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a spray that can be directed onto a surface, such as a surface to be cleaned. The system is powered by a DC (direct current) power system. The device can electrically or positively charge a liquid or gas.

Systems and methods are disclosed that include a spraying apparatus having a hand held spraying device, a flexible reservoir connected in fluid communication with the hand held spraying device and worn on the body of a user of the spraying apparatus, and a pressure device that provides pressure to the flexible reservoir to move fluid from the flexible reservoir to the hand held spraying device.

A mist blower in one aspect of the present disclosure includes an air blower, an air feed pipe, a tank, a liquid feed pipe, a nozzle, a first electromagnetic valve, a controller, and a first manual switch. The first electromagnetic valve (i) opens the liquid feed pipe in response to the first electromagnetic valve being activated and (ii) closes the liquid feed pipe in response to the first electromagnetic valve being deactivated. The controller activates or deactivates the air blower and the first electromagnetic valve. The first manual switch (i) is manually moved by a user of the mist blower and (ii) commands the controller to activate or deactivate the air blower based on a movement of the first manual switch.

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure fluid stream and passes the fluid through an electrode of a nozzle assembly to charge droplets of the atomized fluid.

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure air stream and passes the fluid through an electrode inside a nozzle assembly to charge, such as negatively charge, droplets of the atomized fluid. The system uses a unique nozzle design that is configured to optimally atomize the fluid into various sized droplets.

A kit is described for the conversion of a blower into an atomizer. The kit includes: a tank (45) adapted to contain a liquid, a tubular body adapted to be fixed to the blower and provided with an inlet mouth and an outlet mouth, a diffuser device associated with the tubular body and provided with a liquid dispensing nozzle, a pressurization conduit which places in fluid communication an internal volume of the tubular body placed between the inlet mouth and the liquid dispensing nozzle with a top portion of the tank, and a dispensing conduit which places in fluid connection the dispensing nozzle of the diffuser device with a lower portion of the tank.

An electrostatic fluid delivery system is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a mist, fog, plume, or spray that can be directed onto a surface, such as a surface to be cleaned. The system atomizes the fluid using a high-pressure fluid stream and passes the fluid through an electrode of a nozzle assembly to charge droplets of the atomized fluid.