Contaminant · Water
Chlorine and Chloramine
What it is
Utilities add chlorine or chloramine to disinfect drinking water and keep it safe through the distribution system. The residual is what you taste and smell at the tap.
Why it matters
Chlorine in tap water is primarily a taste, odor, and aesthetic issue at typical residual levels. Reducing it is about palatability, not a health emergency, which is why it sits under the aesthetic standard.
What removes it
A filter certified to NSF/ANSI 42 for chlorine taste and odor. Most pitcher and faucet filters cover this.
Reference: EPA disinfectant residual guidance; NSF/ANSI 42.
Scored filters certified for Chlorine and Chloramine
- 7.5Culligan US-EZ-4 Under-Sink
An under-sink filter genuinely IAPMO certified to NSF/ANSI 42, 53 and 401 for lead, cysts, VOCs, mercury and PFOA/PFOS.
- 7.3Brita Elite Pitcher (10-Cup)
A pour-through pitcher whose Elite filter is certified to reduce lead, mercury, cadmium and more, with a long 120-gallon cartridge.
- 7.2Aquasana AQ-5200 Under-Sink
Certified for lead and PFAS, cheap per gallon, marketing matches the certified scope.
- 7.2AquaTru Classic Countertop RO
A no-plumbing countertop 4-stage RO purifier certified to NSF standards for lead, PFAS, fluoride and arsenic with an efficient drain ratio.
- 6.8Frizzlife SK99 Under-Sink Filter
A direct-connect 3-stage under-sink filter with a 0.5 micron carbon block, IAPMO certified to NSF/ANSI 42 and 53 for chlorine, lead and chloramine.
- 6.0Brita Faucet Mount (Elite)
A tool-free faucet-mount system whose Elite filter is NSF certified to 42 and 53 for chlorine and lead reduction.
- 5.7Waterdrop 10UA Under-Sink
An inexpensive high-capacity inline under-sink filter, IAPMO certified to NSF/ANSI 42 and 372, but its PFAS and lead claims are not certified.
- 5.6Brita Standard Pitcher
An everyday ion-exchange pitcher certified for chlorine, copper, cadmium and mercury - but notably NOT certified for lead.
- 5.4PUR Plus Faucet Mount (PFM400H)
A faucet-mount system whose RF-9999 cartridge is genuinely NSF certified for lead, chlorine, mercury and microplastic reduction.
- 4.9ZeroWater 5-Stage Pitcher (7-Cup)
A five-stage ion-exchange pitcher certified for lead, chromium-6 and PFOA/PFOS - but a short 15-gallon filter makes it costly to run.
- 4.9PUR Plus Pitcher (7-Cup)
An affordable pitcher certified to reduce lead, mercury, microplastics and chlorine, though its 40-gallon filter needs frequent swaps.
- 4.9Waterdrop G3P800 Tankless RO
A tankless 800 GPD reverse-osmosis system certified to NSF/ANSI 42, 53, 58 and 372 with an efficient pure-to-drain ratio.
- 4.1Epic Smart Shield Under-Sink
A slim inline under-sink filter genuinely certified by IAPMO to NSF/ANSI 42, 53 and 401 for lead, VOCs and more - though its PFAS reduction is tested to standards, not in the certified scope.
- 3.8Aquasana Rhino EQ-1000 Whole House
A 1,000,000-gallon carbon and KDF whole-house system certified to NSF/ANSI 42 for chlorine - it markets broader reduction it is not certified for.
- 2.5Clearly Filtered Pitcher
Certified only to NSF/ANSI 42 and 372, its 365+ contaminant claims come from non-accredited lab testing, not health-effects certification.
FAQ
- Is chlorine in tap water dangerous?
- At the residual levels utilities maintain, it is regulated as an aesthetic concern. Filtering it improves taste and odor.