Performance Results

Our 5-stage filters underwent rigorous testing, demonstrating significant reductions in the forever chemicals PFOA and PFOS, lead, chromium, and mercury. Our advanced 5-stage filtration system consistenly surpasses industry benchmarks and establishes a new standard for water quality.

IAPMO Independently Certified

ZeroWater’s 5 Stage Ion Exchange Filter is IAPMO certified to reduce PFOA/PFOS, lead, chlorine, chromium and mercury.

Testing Methodology

Water samples were prepared with inorganic non-metal and metal concentrations in accordance with NSF/ANSI standards. For inorganic non-metals and metals tested outside of the NSF/ANSI standard, a concentration of 10 times the EPA's drinking water limit was used for each compound. The water was then passed through each filter, side by side, at a rate of 1 liter every 90 minutes. After the prepared water was exhausted, a water sample was taken and analyzed to produce the results listed below.

Metals

Name

ZeroWater 1

Brita 2

Antimony

99%
99%

Arsenic III

98%
63%

Arsenic V

98%
94%

Barium

99.9%
96%

Beryllium

99.9%
96%

Cadmium

97%
97%

Chromium 3

98%
93%

Chromium 6

99%
93%

Copper

99.9%
93%

Iron

99.9%
99%

Lead

99%
85%

Manganese

99%
49%

Mercury

92%
92%

Selenium

99%
79%

Silver

99.9%
37%

Thallium

99%
91%

Zinc

99.9%
95%
ZeroWater’s 5-stage filter with a rated capacity of 15 Gallons and Brita’s 2-Stage Standard Filter with a rated capacity of 20 Gallons were tested in accordance with the products’ recommended daily usage of 2 gallons of filtration per day. Results shown are based on an averaged calculation of each filter’s test results of drinking water at a pH level of 6.5 and pH level of 8.5.

1 % reduction after 15 Gallons of Filtration

2 % reduction after 20 Gallons of Filtration

Inorganic Non-Metals

Name

ZeroWater 1

Brita 2

Asbestos

99%
89%

Chlorine

99%
95%

Cyanide

99.9%
85%

Fluoride

99%
3%

PFOA/PFOS

95.1%
0%

Nitrate

98%
48%

Nitrite

99%
93%
ZeroWater’s 5-stage filter with a rated capacity of 15 Gallons and Brita’s 2-Stage Standard Filter with a rated capacity of 20 Gallons were tested in accordance with the products’ recommended daily usage of 2 gallons of filtration per day. Results shown are based on an averaged calculation of each filter’s test results of drinking water at a pH level of 6.5 and pH level of 8.5.

1 % reduction after 15 Gallons of Filtration

2 % reduction after 20 Gallons of Filtration