Abstract: A mail sanitizer and method utilizing microwaves capable of treating biologically and/or chemically contaminated mail items, packages and the like. The mail sanitizer includes a cavity positioned inside a plurality of walls and a door. An activation display mounted on one of the walls allows a user to activate the mail sanitizer, either by manual operation, remote control or timer, allowing microwaves to enter and treat the mail items.

Abstract: A device of the type which uses a moving boundary for detecting a fluid analyte. The device includes an impervious container (10, 12, 14) having a fluid entry aperture (20) and containing two contiguous layers. One of the layers is a detection layer (16) in the form of a sheet comprising a reagent to generate a signal by a reaction initiated by the analyte. The other layer (18) is a spreading layer permeable by the analyte position such that analyte entering the container spreads within the spreading layer. The device can be used, for example, as a gas monitor for indicating exposure to hazardous gases or vapours.

Abstract: The present invention relates, by way of a novel industrial product, to a filter for gaseous fluid, which contains a lyophilized and compressed filter element in the form of a porous layer.