Abstract: Embodiments relate generally to masks, such as filtration masks, with multiple strap configurations. For example, such masks might be worn in either a head strap or an ear strap configuration. Embodiments typically comprise two ear straps each with a connector support element allowing removable attachment of a separate head strap.

Abstract: A mask (100), such as a filtration mask, with multiple strap configurations is provided. For example, such mask might be worn in either a head strap (240) or an ear strap (110) configuration. The mask comprises two ear straps each with a connector support element (130) allowing removable attachment of a separate head strap.

Abstract: A mask (100), such as a filtration mask, with multiple strap configurations is provided. For example, such mask might be worn in either a head strap (240) or an ear strap (110) configuration. The mask comprises two ear straps each with a connector support element (130) allowing removable attachment of a separate head strap.

Abstract: A map for displaying hierarchical or non-hierarchical information in a two dimensional format in a fixed space. The map may be used for displaying information about various entities of a complex arrangement for simultaneous viewing in one presentation or display. Examples of these entities may include controllers, plants and IO terminals. One form of representation may be in nested rectangles. Another form may be in sectors of circles. Other geometrical shapes or figures may used for a graphical presentation of the entities or components. Status of the entities may be indicated with a graphical pattern, color, shading, flickering, and/or other manner. Effort representations, filters, tabular displays, popups of enlarged or scalable portions of the map, layouts with space for other information, and quick access techniques for seeking data points may be incorporated in the map.

Abstract: A system and method for aiding spatial orientation of displayed graphical models of structures. A monitor displays the graphical model and an input commands a processor to selectively display the model as a two dimensional model or a three dimensional model. The processor displays selected features such as specific areas of the structure, fire hydrants, elevators, smoke detectors, fire detectors, stairways, and individuals within the structure. The processor selectively changes between a two dimensional model to a three dimensional model over a noticeable period of time. A selected floor is shown as decreased transparency and the remaining floors with increased transparency or it is tinted. A wire frame can highlight the one floor or the entire structure. Exterior features of the structure may be shown. A circular scroll bar controls rotation of the three dimensional structure while maintaining the user's orientation in virtual space.