File:CSIRO ScienceImage 2708 HEPA Filters.jpg
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![File:CSIRO ScienceImage 2708 HEPA Filters.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/CSIRO_ScienceImage_2708_HEPA_Filters.jpg/800px-CSIRO_ScienceImage_2708_HEPA_Filters.jpg?20140919012241)
Size of this preview: 800 × 534 pixels. Other resolutions: 320 × 214 pixels | 640 × 427 pixels | 1,024 × 683 pixels | 1,280 × 854 pixels | 2,657 × 1,773 pixels.
Original file (2,657 × 1,773 pixels, file size: 4.69 MB, MIME type: image/jpeg)