Ultraviolet Water Purifiers :

fluoride water filters, countertop and under-counter

Ultraviolet Water Filters Kill Bacteria & Viruses

UV Purifiers using short wave UV light

Ultraviolet purification is often the best way to protect well water from bacteria, viruses, algae, and fungi using short wave UV light. Water passing through the chamber is exposed to the UV light that kills bacteria and viruses listed below. A bulb that generates the ultraviolet light must be changed yearly. Chlorine is an alternative, but for serious bacteria and virus problems, UV radiation can be more effective.

Ultraviolet Water Filters Kill the Following Bacteria, Viruses and Cysts

Our UV purifiers generate 30,000 microwatt seconds/cm2 or 30mjoules/cm2 for the required flow rate.  Here is a list of some of the numerous bacteria and viruses our UV purifiers kill, with the dosages required to kill them (much lower than what our units generate).  You can expect eradication of 99.9% of bacteria, viruses and cysts when the proper flow rate is maintained:

Bacteria / Virus/ Cysts Power to kill: microwatt seconds/cm2
Bacillus anthracis 8,700
Bacteriophage (E. Coli) 6,500
Baker's yeast 8,800 8,800
Corynebacterium diphtheriae 6,500
Dysentary bacilli (diarrhea) 4,200
Escherichia coli (diarrhea) 7,000
Hepatitis 8,000
Influenza 6,600
Legionella pneumophilia 3,800 3,800
Mycobacterium tuberculosis 10,000
Poliovirus (poliomyelitis) 7,000
Pseudomonas aeruginosa 3,900
Salmonella (food poisoning) 10.000
Salmonella paratyphi (enteric fever) 6,100
Salmonella typhosa (typhoid fever) 7,000
Shigella dysentariae (dysentery) 4,200
Shigella flexneri (dysentery) 3,400
Staphylococcus epidermidis 5,800
Streptococcus faecalis 10,000
Vibro commo (cholera) 6,500