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AIR CONDITIONING FILTER, BEFORE AND AFTER USE
Air conditioning filters. Comparison of two filters from an air conditioner. The white filter has never been used, and the dark one is after use in a working air conditioner. Air conditioners pass air through filters to clean it before cooling. This filters out pollutants and dust. Air conditioning filters need to be regularly replaced. (KEYSTONE/SCIENCE PHOTO LIBRARY/ALEX BARTEL)
Instruktionen
COPYRIGHTPFLICHTIG
Lizenz
Rights Managed
Erstellungsdatum
19971022
Ort
Credit
KEYSTONE
Source
SCIENCE PHOTO LIBRARY SPL
Byline
ALEX BARTEL
Grösse
5047 x 4013 px
Dateityp
JPEG