9 Devices for testing the function of gas detection and warning devices and for calibrating gas detection and warning devices, namely, automatic test stations and automatic calibration stations, both for portable gas detection devices and for portable gas warning devices; Communication units and parts for Communication units for firefighters and rescue workers, namely, Microphones for communication devices, head up display units in the nature of transparent electronic displays for use in providing motorcycle riders, fire workers, and rescue and safety personnel with navigational and operational information, protective masks providing motorcycle riders, fire workers and safety personnel with navigational and operational information, that can be connected to protective masks worn by firefighters and rescue workers, Communication headsets for use with communication radios, intercom systems or other communications network transceivers; Push-to-talk buttons that can be connected to multiple radio devices; Electronic Control system for stationary gas detection devices; Devices for testing the function of personal protection equipment, namely, respirators other than for artificial respiration, breathing masks in the nature of masks for protecting breath against dust and harmful substances, masks that are used together with respirators other than for artificial respiration, none of them for medical use, and protective suits; Devices for analyzing gases, not for medical purposes, namely, gas detectors for detecting the presence of gas, gas testing tubes, residual and toxic gas analyzers; emergency air supply devices comprising compressed air to be used together with respirators other than for artificial respiration and medical purposes; emergency breathing air supply system for cars and other vehicles, comprising compressed air cylinders, pressure reducer, connection hoses, filters, valves not for medical purposes; emergency escape breathing apparatus, namely, escape hoods, and devices consisting of protective breathing mask and oxygen providing devices, namely, portable oxygen filling pumps being an apparatus for artificial respiration and respiratory masks for non-medical purposes, wherein the oxygen providing devices can be carried around the chest, neck, or shoulder, and wherein the escape hoods are for providing breathable air and oxygen in case of emergency and in environments which have a toxic atmosphere; Filters for respiratory masks not for medical purposes; Gas detectors for detecting the presence of gas; Gas sensors for measuring gas concentration; headpieces for powered air purifying respirators other than for artificial respiration, namely, hoods, helmets, visors and masks that can be connected to respirators not for medical purposes; infrared cameras; measurement devices for detecting the presence of gas and vapor allergens in an environment, namely, air analysis apparatus and surface analysis apparatus in the nature of gas detector tubes, substance-specific reagents, optical, electrical, infrared, catalytic bead and electrochemical sensors, photoionization detectors; pressure measuring apparatus; mobile document printers for printing breath alcohol and drug test measurement results without using a dedicated power supply; Protective body cooling gear, namely, active cooling vests to prevent injury due to overheating; Protective face masks not for medical purposes; protective suits for protection against industrial chemicals, biological agents and other toxic substances; rescue and safety equipment not for medical purposes used to furnish container chambers for providing shelter in emergency situations in mines, tunnels, offshore and onshore industrial plants and the like, namely, breathing air supply devices in the nature of self-contained breathing apparatus, namely, masks for respirators for nonmedical purposes, respirators other than for artificial respiration, parts and fittings therefore in the nature of oxygen breathing units, particle filtering protective masks, and accessories and consumables associated therewith, gas masks, respiratory apparatus other than for medical purposes in the nature of respiratory gas containers, protective helmets, protective suits, filters in the nature of filters for non-medical respiratory masks; Respirators other than for artificial respiration; Respiratory masks for non-medical purposes; sampling units for sampling of gas and air mixtures, namely, portable equipment in the nature of test tubes for sampling gas and air mixtures; self-contained breathing systems comprising masks for respirators for nonmedical purposes, respirators other than for artificial respiration, parts and fittings therefore; Self-rescue apparatus, namely, oxygen breathing units; simulation galleries and devices for simulating the case of fire and emergency situations for training firefighters and rescue workers; soda lime cartridges which are used to absorb acid gases, in closed or semi-closed circuit breathing apparatus; Recorded downloadable software for collecting and processing measurement results obtained by gas detection and warning devices, for configuration, adjustment and calibration of portable gas measurement devices, for alcohol or controlled substance detection, and for thermal imaging cameras; test devices for detecting air flow, namely, machines for testing airflow not for medical purposes; test tubes for detecting air flow; handheld automatic pump to be used together with gas detectors for pumping the gas through the detector device; devices for providing breathing air to workers in hazardous environments, namely, self-contained breathing apparatus in the nature of masks for respirators for nonmedical purposes, respirators other than for artificial respiration, parts and fittings therefore and portable air supply devices, namely, oxygen masks not for medical use, portable oxygen filling pumps being apparatus for artificial respiration, and respiratory masks for non-medical purposes; ignition interlock device; Alcohol breath testing units not for medical purposes