A closeup image of UV dis lights glowing brightly as water flows past them emphasizing the key role of light in purifying the water.
Schlüsselwörter
closeup,
light,
glowing,
brightly,
water,
flow,
key,
role,
light,
purifying,
disinfection,
purification,
lighting,
sanitation,
treatment,
flow,
technology,
illumination,
filtration,
hygiene
Deutsch
