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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

EWG's Water Filter Buying Guide

How to choose a filter system that meets your needs

3M EP35

Manufactured by
System type
Rated lifespan
350 gallons
Filter technology
mechanical/carbon block

California Department of Public Health Certification

Certification number: 10-2056
California certifies this filter reduces: Volatile Organic Compounds (VOCs), Total trihalomethanes (TTHMs), MTBE, Lead (total), Cysts/Bacteria, Chlorine, Chloramine, Asbestos, .
Notes: Do not use where water is microbiologically unsafe or with water of unknown quality, except that systems certified for cyst reduction may be used on disinfected waters that may contain filterable cysts.

NSF Certification

NSF certifies that this filter reduces: Asbestos; Chlorine; Chloramine; Cyst; Lead; MTBE; Nominal Particulate Class 1; Taste/Odor; TTHM; VOC


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: