Ключевые слова: air, allergic, allergy, apparatus, background, breath, breathing, bronchial, bronchitis, care, chemistry, compressor, cure, disease, equipment, flu, health, help, ill, illness, inhalation, inhale, inhaler, mask, medical, medication, medicine, nebula, nebulizer, nobody, object, oxygen, pharmacy, plastic, recovery, respiration, respirator, respiratory, science, sick, sickness, technology, therapy, tool, treatment, vapor, vaporize, virus, water, white,