Ключевые слова: alert, audio, awareness, awareness campaign, awareness sign, background, care, caution, circle, communication, compliance, concept, damage, design, ears, equipment, graphic, guidelines, health, human factor, icon, illustration, information, lifestyle, message, monochrome, no entry, nonsound, notice, prevention, procedure, prohibition, protection, protocol, red, restricted, risk, rules, safety, safety first, safety measure, sign, signage, sound, standard, symbol, visual, warning, workplace,