A filter module for sterile filtration and virus filtration of fluid media. The filter module includes a filter membrane with a porous edge structure arranged thereon and at least one anchoring element. The filter membrane with the porous edge structure is embedded in the anchoring element and serves as edge reinforcement to improve the connection of the filter membrane to the anchoring element. The texturing or surface roughness of the edge reinforcement provides an interlocking effect between the filter membrane and the anchoring element. The embedding of the filter membrane in the anchoring element provides a fluid-tight connection of the membrane to the anchoring element which prevents the occurrence of leaks in the end region of the filter module. A method for producing the filter module is also described.

A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.

Disclosed is a volatile liquid dispensing system that includes a dispenser and a refill unit. The dispenser is mounted on a predefined surface. The dispenser includes a front cover and a rear cover. The refill unit is removably secured inside the dispenser thereby maintaining a predefined gap therebetween. The refill unit includes a refill cover. The refill cover includes a fragrance reservoir and a collection device enclosed therein. The fragrance reservoir is formed by a gas shell and a fragrance shell. The fragrance reservoir is positioned in a predefined orientation with respect to the mounting surface. The collection device is positioned adjacent to the fragrance reservoir such that a predefined gap is maintained therebetween. The collection device is enclosed in the refill cover such that a predefined gap is maintained therebetween thereby allowing evaporation of the volatile liquid from all sides of the collection device.

Perfume testers comprising one or more atomizers are disclosed. The atomizer comprises a liquid compartment and a mixing compartment. The mixing compartment comprises an air inlet and an air outlet. The mixing compartment comprises a mixing opening facing the liquid compartment and the liquid compartment comprises a liquid opening facing the mixing compartment. The mixing opening matches the liquid opening. The atomizer further comprises a wick connecting the liquid compartment and the mixing compartment such that in use the wick fits in the liquid and mixing compartments openings in an airtight manner. The wick extends into the mixing and liquid compartments. A portion of the wick extending into the mixing compartment comprises an outer contact surface and a volume of the mixing compartment is defined such that a ratio between the outer contact surface and the volume of the mixing compartment is at least approximately 0,05:1.

An apparatus for delivering a volatile material in a continuous manner is disclosed. The apparatus includes a delivery engine having a reservoir for containing a volatile material; a rupturable substrate secured to the reservoir; a rupture element positioned adjacent to the rupturable substrate; and a breathable membrane enclosing the reservoir, rupturable substrate and rupture element.

A method of manufacturing a volatile composition dispenser is disclosed. A container is positioned on a pallet, wherein the container has a bottom wall and side walls extending circumferentially around the bottom wall to define a reservoir and wherein the side walls have a circumferential inner edge defining a reservoir opening. The pallet is moved to a filling station in fluid communication with a tank containing a perfume composition. The perfume composition is dispensed into the exposed reservoir. A vapor impermeable substrate is attached to the planar surface of the container containing the dispensed perfume composition.

Apparatus for delivering a volatile material including a reservoir with an opening for containing a volatile material. A first membrane is disposed adjacent the opening of the reservoir, and a second membrane disposed adjacent the opening such that the first membrane is disposed between the second membrane and the reservoir, wherein at least a portion of the second membrane is spaced apart from the first membrane forming a vapor chamber between the first and second membranes.

A photosensitizer formulation can be disposed on or in a container. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation.

A controllable scent sample dispenser has a microdosing device for outputting, during an activation state, a scent sample at a scent sample outlet to the environment, wherein the microdosing device is placeable adjacent to an animal's nose so that a distance between the outlet of the microdosing device and a nare or nostril of the animal's nose is within a predefined range, and a microdosing driver unit for adjusting a dosing rate of the scent sample output at the scent sample outlet by selectively activating the microdosing device.