The present invention relates to a fog-generating device comprising a reagent (1), ignition means (2), a reservoir (3) containing a fog-generating material (4), and a heat exchanger wherein gas generated by ignition of the reagent (1) drives fog-generating material from said reservoir to said heat exchanger. Further it relates to a removable housing for a fog-generating device comprising a reagent and a reservoir containing a fog-generating material, wherein in that said removable housing further comprises means to allow transmission of an ignition signal from said fog-generating device to said reagent. The invention further provides the use of said device and/or removable housing for the generation of fog, in particular to protect against intruders and physical treat by persons. In a particular embodiment, the fog-generating device of the present invention or the removable housing therefore comprises depressurizing means (18). Depressurizing means allow the escape of gas from the device so that the pressure inside the device is reduced and becomes closer to atmospheric pressure.

A cartridge configured to be releasably connectable with a housing is provided. The cartridge has a reservoir for containing a fluid composition. The reservoir includes a top surface, a bottom surface vertically opposing the top surface, and a sidewall that joins the top and bottom surfaces. The reservoir also includes a sponge disposed within the reservoir and a microfluidic die disposed adjacent to the sidewall. The fluid composition is gravity fed from the reservoir to the microfluidic die. The microfluidic die is configured to dispense the fluid composition in an upward dispensing direction in opposition to the force of gravity. The microfluidic die may be disposed at an acute angle from the interior of the cartridge and relative to the bottom surface of the reservoir.

An apparatus (200) for smoothing a surface of an object (100). The apparatus includes a chamber (210), a reservoir (324) configured to hold a liquid (322), and a nebulizer assembly (212) configured to generate a mist (104) from the liquid into the chamber. The nebulizer assembly includes a mesh (732), a vibrating element (731), and a wick (736). The object is received in the chamber and the mist is configured to surround the object.

Provided are a cleaning method and cleaning device for cleaning with micro/nano-bubbles, with which a simple method of spraying a treatment solution containing micro/nano-bubbles onto a substrate to be processed makes it possible to efficiently and reliably peel off residual resist or remove contaminants from the substrate, while reducing an environmental load. This cleaning method is characterized in that, with respect to a substrate to be treated to which a resist film has adhered onto the substrate or a substrate to be treated to which the surface thereof has been contaminated with a metal or metal compounds, the resist film is peeled off or the metals or metal compounds are removed by spraying onto the substrate to be treated a treatment solution containing gaseous micro/nano-bubbles and having a temperature maintained at 30 C. to 90 C., the mean particle size of the micro/nano-bubbles when measured by an ice embedding method using a cryo-transmission electron microscope being 100 nm or smaller, preferably 30 nm or smaller, and also preferably the density of such bubbles being 10.sup.8 or more bubbles per 1 mL.

A wood floor mop assembly includes a liquid reservoir adapted to hold floor cleaning liquid; a liquid spray nozzle assembly in selective fluid communication with floor cleaning liquid in the liquid reservoir; and a heating unit operatively associated with the liquid reservoir and adapted to heat floor cleaning liquid in the liquid reservoir.