Dust removing installations for cleaning purposes; negative pressure units, namely, apparatus for generating negative pressure; apparatus for generating overpressure; washing installations

Measuring apparatus; differential pressure measuring apparatus; air-sampling apparatus in the nature of measuring instruments; electronic communications installations [image and sound]; breathing masks; breathing air apparatus, except for artificial respiration; electronic protective breathing masks, namely, apparatus with electronic air supply for filtering breathing air

Air and water filtering apparatus for pollutant cleanups; air purifiers; dust removing installations for ventilation; decontamination showers; clean chamber for decontamination, namely, stationary decontamination chambers or decontamination chambers with mobile lock systems [personnel and material locks]; mobile and fixed decontamination installations for handling contaminated people and materials; water conditioning units; stationary/mobile water filtering apparatus/installations; stationary/mobile air filtering apparatus/installations (dusts, odours, gases); air showers/cabins in the nature of clean chambers for decontamination; air filtering apparatus and installations; negative pressure units in the nature of ventilation device with air filtration top producer a directed air flow; suction apparatus, for use in the following fields: treatment of decontaminated air; apparatus for drawing and filtering air; mobile facility systems and multi-chamber systems for expanding mobile air showers/shower cabins in the nature of clean chambers, decontamination showers and decontamination chambers with mobile lock systems [passenger transport and material locks]