Relative sizes of various allergens

Diagram comparing the sizes of common airborne particles including human hair (50–70 microns), pollen (30–50 microns), ragweed (17–23 microns), dust mite (10 microns), and a 1-micron reference marker. The illustration uses scaled circles to visually represent relative particle sizes, relevant to air quality and filtration contexts.

Notes

Diagram comparing the sizes of common airborne particles including human hair (50–70 microns), pollen (30–50 microns), ragweed (17–23 microns), dust mite (10 microns), and a 1-micron reference marker. The illustration uses scaled circles to visually represent relative particle sizes, relevant to air quality and filtration contexts.

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