What water filtration system should I use?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Some people might want to invest in a filtration system for their homes that can remove specific contaminants. There are a variety of devices -- carafes and faucet mounts, as well as countertop, under-the-sink, and whole house (point of entry) units. They can make water taste better and also remove certain impurities and contaminants.

Since the mechanism and ability to remove contaminants varies by product, no single filtration system can protect against all contaminants. Choosing a filtration or purification device will depend on what you want to remove and how much you want to invest.

The EPA provides standards but does not endorse specific devices. It suggests that consumers match the filter to the contaminants and consider personal preferences for care and cost. There are three organizations accredited by the American National Standards Institute (ANSI) that certify that water filters meet EPA standards and work the way they should: Underwriters Laboratory, NSF International, and the Water Quality Association.

This content originally appeared on doctoroz.com.

Continue Learning about Water


Plenty of water in your diet helps digestion, skin, and muscle tone. It can help prevent cramping during exercise and even relive stress. Many times we are low on water - dehydrated, and don't realize it. Being dehydrated can mani...

fest with symptoms like fatigue and depression. In fact, by the time we are feeling thirsty, we're already slightly dehydrated. That's one reason that we hear the recommendation to drink eight standard glasses of water daily. Adequate water helps you digest food an helps your body get rid of wastes. Your kidneys need to process water for you to eliminate waste by urination, and getting enough water ensures that these wastes are diluted. Not getting enough water can encourage the formation of painful kidney stones.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.