All Germs
Germs

Giardia lamblia cysts

UV doses per log reduction

3581011D90 · 90 %22D99 · 99 %33D99.944DVGW 4-log5599.999 %6699.9999 %mJ/cm²LOG-REDUKTIONS-STUFE

Medium & classification

Water
Protozoan cyst

UV resistance

Sensitive

4 mJ/cm² are needed for 4-log reduction — classification for system sizing.