Abstract: The invention relates to a method for providing a mini/microenvironment, separating a determined zone from a surrounding space while providing said zone a window access opening without loss of protection against hazardous agents either entering or leaving the protected zone. More particularly, an embodiment describes personal respiratory protection provided against hazardous airborne particulates and pathogens without the requirement of a solid barrier over the oral-nasal portion of the face. High breathing resistance, impaired voice communication, thermal stress, and uncomfortable straps holding a mask tightly over the mouth and nose are eliminated. Thereby, considerable increased comfort during long-term use is realized without compromising protection.

Abstract: A flat screen Mini Display Panel (MPDP) of the emissive plasma pixel element type for scanned television image reproduction is disclosed yielding bright, efficient and rugged displays for TV applications by use of MEMS and VLSI technology for fabrication. The invention takes a complete system approach towards designing a high efficiency television display of the mini type for portable applications. A main objective of the present invention is to overcome problems inherent in X-Y matrix scanning of the picture elements in a flat display screen. A simplified addressing method eliminates the need for conventional X-Y matrix addressing of 1200 conductors. By means of the invention a gaseous electric discharge causes a visible light pixel to move progressively and recurrently along a series of adjacent electrodes by application of voltage impulses so as to achieve interlaced scanning. Improved construction technology to achieve very small pixel elements is a feature of the inventive structure.