Answered from our dataUpdated September 25, 2026
What does Aquasana filter out?
Across the 18 Aquasana systems we list, the makers claim reduction of 31 contaminants.
These are the makers' claims. Certification for them is being verified and is not counted here yet.
- 18 products behind this answer
- 6 categories
- updated September 25, 2026
Counted from the contaminants each maker says its product reduces. How we score and check
By category
Where the products behind this answer sit. Each links to that category's ranked list.
What the makers say they reduce
- Chlorine 18
- Sediment 11
- Chloramine 10
- Cysts 10
- Rust 9
- PFAS 8
- Lead 8
- Pharmaceuticals 8
- VOCs 8
- Silt 7
- Taste and Odor 7
- Asbestos 6
- Mercury 6
- Microplastics 6
- Herbicides 5
- Pesticides 5
- Turbidity 4
- Bacteria 4
- Viruses 4
- Scale 2
- Arsenic 1
- Barium 1
- Cadmium 1
- Chromium 1
- Copper 1
- Fluoride 1
- Nitrate 1
- Nitrite 1
- Radium 1
- Selenium 1
- TDS 1
The 18 products behind this answer
Best overall score first. Each links to its full review, where the score is broken down.
Some links on this page earn us a commission. It never affects our scores or rankings. How this works
27th of 33 in Well Water
29th of 33 in Well Water
53rd of 55 in Whole House
What this means
- Maker claims, not lab results. Each count is what the maker says its system reduces.
- Certification is stronger proof. We're checking every claim against the certifiers' own listings.
- Test your water first. It tells you which of these you actually need to reduce.
The ranked lists
Every product we score in these categories, in order, with the reasons for each place.
2
3
The best whole house water filters
First: Kind Water E-1000UV. Top 10 of 55 scored, 17 September 2026.
See the ranking
1
2
3
The best under sink water filters
First: WaterChef U9000. Top 5 of 20 scored, 17 September 2026.
See the ranking
1
2
3
The best shower and faucet water filters
First: WaterChef SF-7C. Top 5 of 15 scored, 17 September 2026.
See the ranking
1
2
3
The best well water filtration systems
First: US Water Systems Matrixx inFusion. Top 10 of 33 scored, 17 September 2026.
See the ranking
Compare them head to head
Comparisons in Whole House between products and brands in this answer.
Related questions
- Is Aquasana good? We list 18 Aquasana products and score 18 of them. Their overall scores run from 4.8 to 6.7, with a median of 5.8, against a median of 5.7 for all 284 products we score.
- How long do Aquasana filters last? Of the 18 Aquasana systems we list, 18 state a filter life; the most common is 6-12 months (12).
- What does Berkey filter out? Across the 11 Berkey systems we list, the makers claim reduction of 20 contaminants.
- Does Berkey remove fluoride? Seven of the 11 Berkey systems we list claim to reduce fluoride.
- Does Berkey remove PFAS? Nine of the 11 Berkey systems we list claim to reduce PFAS.
- Does Berkey remove lead? 11 of the 11 Berkey systems we list claim to reduce lead.
Counted from our data September 25, 2026 · How we score · All answers