Art style: 3D Medical Illustration.
A saline rinse bottle rests on a bathroom counter beside a medical nasal cutaway diagram showing a gentle one-sided evening rinse passing smoothly through the nasal passage. Medium close-up, slight three-quarter angle, combining the real object and anatomical explanation in one frame. Warm indoor evening lighting from a mirror source mixes with soft ambient shadows. Mood is calm, manageable, and routine-friendly, presenting the step as simple and nonthreatening. No person visible. Dominant colors: white, pale blue, soft gray, muted teal, warm amber.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "3D Medical Illustration" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "3D Medical Illustration". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "3D Medical Illustration" idiom, not in any other medium.
