From clean to dirty: One year's worth of air pollution captured by purifier filters

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Size: 5202px × 3901px
Photo credit: © Teodor Costachioiu / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: air, clean, comparison, dust, filters, gray, hepa, indoor, maintenance, people, pollution, purifier, repairing, smoke, technology