The 8 Best Water Filters in 2022

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Water filters not only help improve the flavor of your water but also protect you from impurities such as rust particles and harmful contaminants such as bacteria and lead.¹ Sure, bottled water is easily available as a quick and (initially) cheap solution, but water filters are more sustainable²—and will save you money in the long run.

There are, however, countless types of water filters available on the market, each differing in what they remove from your water. These include under-sink filters, faucet attachments, whole-house filtration systems, pitcher filters, and more. While there isn’t a one-size-fits-all filter solution, we help narrow down the list of the best water filters based on your needs. Each item included in this roundup has either been certified by the NSF, a health and safety standards testing company, or tested and certified by an independent third party to meet NSF standards.

“Be sure to do your due diligence as a consumer and compare filters and replacement cartridges,” says Rick Andrew, Director of NSF International’s Global Business Development. “If something seems too good to be true, then there is a good chance it may be a counterfeit.” 

Do keep in mind the CDC notes that no filter can eliminate all contaminants, and many are specialized.¹ To know what contaminants need to be removed, certified labs can test water from private wells or cisterns; for consumers who get water from their city, a Consumer Confidence Report is sent annually with the water bill.³

Here are the best water filters on the market.