Ключевые слова: 3d, air, airborne, allergen, allergic, allergy, asthma, biology, botany, cell, concept, disease, fever, flower, germ, grain, hay, health, illustration, microscopic, nature, particle, plant, pollen, pollination, pollinosis, reaction, research, rhinitis, science, season, seasonal, seed, sneeze, spore, sporopollenin, stamen,