| Abriebfestigkeit | abrasion resistance |
| Abschnittskanal | selectional radio channel |
| Absorber | absorber |
| Absorption | absorption |
| Absorptionsmittel | absorbent |
| Absperrventil für Manometerleitung | shut-off valve for pressure gauge tube |
| Abstoßungsfähigkeit | repellancy |
| Abstoßungsfähigkeit gegen Flüssigkeiten | repellancy to liquids |
| Abzweigstelle einer Leinensicherung | branch-off point |
| Adaptation | adaptation |
| Adapter | adapter |
| Adsorption | adsorption |
| Adsorptionsmittel | absorbent |
| aerob | aerobic |
| aerob-anaerobe Schwelle | aerobic-anaerobic threshold |
| aerobe Kapazität | maximum aerobic capacity |
| Aerosol | aerosol |
| Aerosol, flüssiges | aerosol, liquid |
| Akkreditierte Stelle | accredited authority |
| Aktivierung | activation |
| Aktivkohle | activated charcoal |
| akustische Erkennungshilfe | audible identification aid |
| akustische Warneinrichtung | audible warning device |
| Alarmsignal | alarm signal |
| Alkali-Regenerationspatrone | alkali regeneration cartridge |
| Alterung | ageing |
| Alveolen | alveoli |
| anaerob | anaerobic |
| anaerobe Kapazität | maximum anaerobic capacity |
| Anamnese | anamnesis |
| Anfangsdruck | initial pressure |
| Anfangszeit | starting time |
| Angst | anxiety |
| Anlegen von Atemschutzgeräten | donning of respiratory protective devices |
| Anpassung | adaptation |
| Anschlussgewinde | facepiece thread |
| Ansprechdruck | opening pressure |
| Antibeschlagmittel | anti-fogging compound |
| Anti-Fog-Scheibe | .: anti-fogging visor |
| Anzüge zum begrenzten Einsatz | suits for limited use |
| Anzugventile | suit valves |
| Apertometer | apertometer |
| Arbeit | work |
| Arbeitsdruck | working pressure |
| Arbeitsenergieumsatz | working energy metabolism |
| Arbeitsinsuffizienz | functional cardiac insufficiency |
| Arbeitskapazität | physical working capacity |
| Arbeitsmedizinischer Dienst | Occupational Health Service |
| Arbeitsmedizin. Grundsätze | occupational medicine principles |
| Arbeitsmedizin. Vorsorge | preventive occupational medicine |
| Arbeitsmed. Vorsorgeuntersuchung | medical check-up |
| Arbeitsplatzgrenzwert | workplace limit value |
| Arbeitsraum | training room (part of training galleries) |
| Arbeitsschutz | occupational safety |
| Arbeitsunfähigkeit | inability to work |
| Arbeitsunfall | occupational accident |
| Atemäquivalent | breathing equivalent |
| Atemanschluss | facepiece |
| Atemanschluss – Prüfung | facepiece test |
| Atemarbeit | work of breathing |
| atembar | breathable |
| atembarer Staub | breathable dust |
| Atembeutel | breathing bag |
| Atemfeuchte | breathing humidity |
| Atemfilter | respiratory filter |
| Atemfrequenz (techn), medizin.) | breathing frequency |
| Atemgas | breathable gas |
| Atemgasvorrat | breathable gas supply |
| Atemgerät | respiratory equipment |
| Atemgesteuerte Dosiereinrichtung | lung governed demand valve |
| atemgesteuerte Versorgung | lung governed supply |
| Atemgifte | breathing poisons |
| Atemgrenzwert | breathing limit value |
| Atemkalk – Regenerationsspatrone | soda lime regeneration cartridge |
| Atemkreislauf | breathing circuit |
| Atemluft | breathable air |
| Atemluft–Energieinhalt | breathable air – energy content |
| Atemluftflasche | air cylinder |
| Atemluftgenerierung | breathing air regeneration |
| Atemluftverbrauch | breathable air consumption |
| Atemluftverdichter | breathing air compressor |
| Atemluftversorgung | breathable air supply |
| Atemluftvorrat | breathable air reserve |
| Atemminutenvolumen | respiratory minute volume |
| Atemorgane | respiratory system |
| Atemschlauch | breathing hose |
| Atemschutz | respiratory protection |
| Atemschutz – Telemetrie | respiratory protection -telemetry |
| Atemschutz – Übung | respiratory protection – training |
| Atemschutzanzug | respiratory protectioin suit |
| Atemschutzausrüstung | respiratory protective equipment |
| Atemschutzbluse | respiratory protection blouse |
| Atemschutzeinsatz | respiratory protection use |
| Atemschutzgerät | respiratory protective device |
| Atemschutzgerät–Auswahl (im Einsatz) | respiratory protective equipment, selection during operations |
| Atemschutzgerät – Auswahl | respiratory protective devices – selection |
| Atemschutzgerät – Beständigkeit gegen Wärmestrahlung | respiratory protective device – resistance to thermal radiation |
| Atemschutzgerät – Bewertung | respiratory protective devices – evaluation |
| Atemschutzgerät – Dichtsitz | respiratory protective device – face seal |
| Atemschutzgerät – Eigenschaften | respiratory protective devices – features |
| Atemschutzgerät – Eignung | respiratory protective device – suitability |
| Atemschutzgerät – Halterung | respiratory protection device -fixture |
| Atemschutzgerät – Instandhaltung | respiratory protective device – maintenance |
| Atemschutzgerät – Lagerung | respiratory protective equipment – storage |
| Atemschutzgerät – Mängelkontrolle | respiratory protective devices – fault control |
| Atemschutzgerät -Praktische Leistungsprüfung | respiratory protective devices – practical performance test |
| Atemschutzgerät – Prüfung | respiratory protective equipment – testing |
| Atemschutzgerät – Schutzleistung | respiratory protective device – protection performance |
| Atemschutzgerät für Selbstrettung | escape-type respiratory protective device |
| Atemschutzgerät umluftabhängig | respiratory protective device, supplied with breathable gas |
| Atemschutzgerät umluftunabhängig | respiratory protective device, supplied with breathable gas |
| Atemschutzgerätekartei | respiratory protective equipment register |
| Atemschutzgerätelagerung | respiratory protective equipment – storage |
| Atemschutzgeräteraum | respiratory protective equipment storage room |
| Atemschutzgeräteträger | wearer of respiratory protective equipment |
| Atemschutzgeräteträger -Fortbildung | wearer of respiratory protective equipment – further Training |
| Atemschutzgerätewart | serviceman/woman for respiratory protective equipment |
| Atemschutzgerätewerkstatt | maintenance workshop for respiratory protective devices |
| Atemschutzhaube | breathing hood |
| Atemschutzhelm | breathing helmet |
| Atemschutzkanal | radio channel used during fire brigade operations with respiratory protective equipment |
| Atemschutzmaske | breathing mask |
| Atemschutznachweis, persönlicher. | respiratory protection record, personal |
| Atemschutznotfall | respiratory protection emergency |
| Atemschutznotfallrettung | respiratory protection emergency rescue |
| Atemschutznotfallset | respiratory protection emergency kit |
| Atemschutznotfalltraining | respiratory protection emergency training |
| Atemschutzorganisation | respiratory protection organization |
| Atemschutzpflegestelle | respiratory protection device – care spot |
| Atemschutzprüfgeräte | test equipment for respiratory protective devices |
| Atemschutzregistrierung | registration of respiratory protective equipment |
| Atemschutzsammelstelle | respiratory protective device collecting point |
| atemschutztauglich | suitable for working with respiratory protective equipment |
| Atemschutzüberwacher | officer supervising the operability of respiratory protective devices |
| Atemschutzüberwachung | monitoring of rescue teams using respiratory protective equipment |
| Atemschutzüberwachungsbrett | respiratory protection device control board |
| Atemschutzüberwachungstafel | respiratory protection device control board (RPD control board) |
| Atemschutzüberwachungstafel elektronisch | electronic respiratory protection control |
| Atemschutzübung | respiratory protection training |
| Atemschutzübungsanlage | respiratory protection device training gallery |
| Atwemschutzunfall | accident of wearers of respiratory protective devices |
| Atemschutzwerkstatt | Workshop for respiratory protection officer equipment |
| Atemstillstand | respiratory arrest |
| Atemgastemperatur | breathable gas temperature |
| Atemventil | breathing valve |
| Atemvolumen | respiratory volume |
| Atemwege | respiratory tract |
| Atemwegskatarrh | catarrh of the respiratory tract |
| Atemwiderstand | breathing resistance |
| Atemzentrum | respiration center |
| Atmosphäre | atmosphere |
| Atmung | respiration |
| Atmungsorgane | respiratory organs |
| Atmungsorgane, obere | respiratory organs, upper |
| Atmungsorgane, untere | respiratory organs, lower |
| Atmungssystem | respiratory system |
| Atrophie | muscular atrophy |
| ätzende Stoffe | caustic substances |
| Aufnahmevermögen eines Filters | filter capacity |
| Aufsicht bei den Übenden | supervising of practicing persons |
| Aufsichtsbehörde | supervisory authority |
| Aufwärmen | warm-up |
| Ausatemfeuchte | exhalation humidity |
| Ausatemgas | exhaled gas |
| Ausatemluft | exhalation air |
| Ausatemschlauch | exhalation hose |
| Ausatemtemperatur | exhalation temperature |
| Ausatemventil | exhalation valve (facepiece) |
| Ausatemventilgehäuse | exhalation valve housing |
| Ausatemventilprüfung | exhalation valve test |
| Ausatemventilschlupf | exhalation valve leakage |
| Ausatemwiderstand | exhalation resistance |
| Ausatmung | exspiration |
| Ausbildung im Atemschutz | training on respiratory protection |
| Ausbildung – Belastungsübung | training – stress exercise |
| Ausdauer | endurance |
| Ausdauergrenze | endurance limit |
| Ausdauertraining | endurance training |
| äußere Atmung | external respiration |
| AX-Filter | AX filter |
