close up mold in air conditioner system. Danger and the cause of pneumonia and respiratory diseases in house or office. air condition must clean evern

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close up mold in air conditioner system. Danger and the cause of pneumonia and respiratory diseases in house or office. air condition must clean evern month for health.

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Size: 4608px × 3456px
Photo credit: © PattyPhoto / Alamy / Afripics
License: Royalty Free
Model Released: No

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