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EWG’s UPDATED Water Filter Buying Guide

Wednesday, February 27, 2013

EWG’s UPDATED Water Filter Buying Guide

Find the right filter for your water – and budget

What is most important to you in a water filter?

1 Least expensive
2 Most effective
3 Soften hard water
4 Remove specific contaminants

Carbon Filters

Use a carbon filter to reduce contaminants at low cost. Many types to choose from, but effectiveness varies widely.

See all carbon filters

Reverse Osmosis Systems

Use a reverse osmosis system combined with a superior carbon filter. Note: Many brands use minimally effective carbon filters.

See all reverse osmosis systems

Water Softeners

Use a whole-house water softener with an ion exchange filter to soften your water.

See all water softeners

Several Options

Use the search function to find filters certified to reduce particular contaminants. Not all technologies are equally effective.

Search below

Find a filter that works best for you:

Water filter type
Filter technology
Certified to reduce

see more contaminants

Updated March 28, 2013

Key Issues: