Natural ventilation system, operable windows, sliding glass doors, clerestory windows, solar tubes, skylights, green roofs, living walls, air purification systems, HEPA filters, activated carbon filters, UV light disinfection, mechanical ventilation systems, ductwork, vents, grilles, air handling units, dehumidification systems, humidification systems, air recycling, heat recovery systems, energy-efficient design, sustainable architecture, modern interior design, bright airy spaces, natural daylight, soft diffused lighting, 1/1 composition, shallow depth of field, realistic textures.