The 7 Best Water Filters of 2021

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Some people filter the water just for flavor reasons, while others have tested their water and are not satisfied with the water balance.

They start from

Except for water. Some of them are necessary chemical residues, such as

Water can be disinfected (but it may have health effects), while others may be that pollutants are absorbed as the water flows through miles of pipes to your house. People with wells may find that their local super water contains natural minerals mixed with natural minerals, which can stain bathroom fixtures and give off strange smells. This water is not unhealthy, just appetizing and ruining the bathtub. 

If you are sure you need a water filter, here are some of our favorites.

In order to achieve the best combination of ease of use and value, a countertop water purifier is a wise choice. All the convenience of the filtration system under the sink, without the hassle of installation (although it does need to be connected to the sink faucet, it is very simple). This affordable device has a 5-stage filtration system to remove chlorine and particulates.

It is worth noting that the device can filter 30,000 gallons of water and then need to be completely replaced (no filter needs to be replaced), but it does not contain much more plastic than the filter, so it does not account for a large proportion. waste. No maintenance required, this device couldn't be simpler. However, if you are looking for a more specific filter, check out other countertop filters that offer filter type options-as the name suggests, this is a basic unit. 

This is small but stylish

The department comes from a new Scottish company. If you are concerned about plastic waste from other available filter brands, you will like this company's model, which is a refillable filter element. You don’t need to buy the entire replacement filter. Instead, you will get a refill in the mail with a particulate and carbon filter, which you must manually replace with a reusable filter.

This is a bit cumbersome, and not as simple as using another plastic filter, but for those who don’t mind doing extra work to significantly reduce plastic (according to the company’s website, its carbon emissions are reduced by 75%) Emission reduction), it is worth it.

A plumber needs to install the water filter system for the entire house, but this is a fairly simple task, just connect it to the house's water supply system when the house enters the house. The fast water system has some advantages. It has a three-stage filter (many similarly priced devices only have two), but this means you will replace an additional filter.

The first filter removes sediments in the water, and the second filter collects heavy metals such as mercury. The third is the activated carbon block, which can remove chlorine, medicines, pesticides and other chemicals. The sediment filter housing is translucent, so it is obvious when it needs to be replaced. The filter can last for 6 to 12 months (replacement of the filter is easy, it is easy to DIY), depending on the household water consumption.

Because these BPA-free bottles provide convenience for busy urban residents and people camping in the wild, who get their water from untreated water sources, Lifestraw must filter out harmful bugs and other chemicals. When you suck water through a straw, it can remove 99.9999% of sardines, E. coli, cholera and protozoa (such as Giardia) through a 0.2 micron filter.

The activated carbon filter removes other potentially harmful chemicals and has a working capacity of up to 1,000 gallons before it needs to be replaced. If an emergency occurs that may affect your use of clean water, this is a good choice. Lifestraw also gives back to society by developing clean water programs where children do not have access to this important resource.

Pur is not the fastest filter on the market, but other advantages make up for the time it takes to filter a complete water tank (about ten minutes). It has an ergonomic and comfortable handle design that can be filled with one hand, which is very convenient when you are dealing with kitchen chores. Pure water filters are easy to find and reasonably priced, which is useful-no special order is required.

Part of the reason the filter takes a long time to filter is because it has a short, fat pitcher that can hold 11 cups. Therefore, you need to reduce the frequency of replenishment. But another reason why it may take longer to clean up your water is that it has been proven to be solvable by the independent assessment agency American National Standards Institute/NSF International (ANSI/NSF).

. If lead is an issue, they have a variety of filters specifically for lead.

Although many sinking filters require plumbers to connect them, the advertisement is advertised as DIY-relatively convenient, and patient people can indeed set up the filters themselves in about an hour. Aquasana removes 99% of 77 pollutants. These pollutants include herbicides and pesticides, heavy metals such as lead and mercury, and other chemicals such as chlorine, asbestos and drugs that are increasingly entering the drinking water supply.

It comes with a faucet for filtering water only, and the filter needs to be replaced every six months. Aquasana also provides a subscription program, if you can't remember to order a new filter, it will automatically send you the new filter.

The other filters in this list are suitable for water that has been treated in municipal or municipal wastewater treatment plants. Unless there is some kind of natural disaster or other abnormal conditions, the treated water will not contain pathogens. However, if you are filtering water that may or does contain bacteria or other potential pathogens (such as Cryptosporidium or Giardia), you will need a stronger filter because these small insects are so small in size. Can pass through typical filters.

UV filters like this will kill pathogens, but will not remove heavy metals or other chemicals. The device comes in various sizes and can filter water throughout the house, so you don’t have to worry about closing your mouth in the shower. It has passed independent certification

Class A disinfection performance.

Our preferred water filter is AmaxonBasics AMZB-G30CW filtration system (

). If you buy a water tank system in the market, please consider using the PUR Classic 11 cup water filter tank (


It is important to think about why you should buy a water filter before you buy it, because it can help you determine which water filter is best for you. If you drink most of the water from the kettle and don't want to spend a lot of money, but still want to ensure clean, tasty water, then a filtered kettle is the ideal choice. If you are just worried about the smell of drinking water and want to filter out any other chemicals that you may produce when drinking or cooking, the easiest and cheapest option is a countertop or pitcher. For the same purpose, the next upgrade level (but with a lot of effort) will be the indoor refrigerator unit connected to the ice maker. 

If you want to use all the water in the kitchen sink to clean vegetables, drink water and use for recipes, and the convenience of not filling the refrigerator or countertops with containers (and not having to fill the spaghetti pot from the container, it is convenient) one no Convenient refrigerator faucet) and sunken water tank are the only way to go. 

Finally, if you want to filter all the water you use, from the water you might drink from the bathroom sink in the middle of the night to the shower or bathing water, you need a whole house filter. This is especially meaningful if you have hard water that needs to be softened. As Christine Lepisto

This may be a more sustainable option because "longer equipment life, more laundry before graying, and less effective detergents can offset the energy and materials consumed by water softening."

We do not recommend that you use reverse osmosis filters because, on average, they use about 4 gallons of water for every gallon filtered. Excess water is considered waste water. Considering that in the United States and many parts of the world, freshwater resources are limited or very limited, so this is not a responsible or sustainable choice.

In addition, reverse osmosis filters do not have any obvious advantages over other types of filters. Compared with the other types of filters listed here, they filter water slower, and they take up a lot of space. To get the job done-they need a gallon storage tank.

Before buying any water filter, check your local water supply-you may not need it. Assuming that you need filters because someone else owns them, this is not a scientific method to determine which method is right for you. Take a look

then click

—Enter your local information and you will be linked to the report, or you can obtain direct contact information for the water department (so that you can request a report). You can also try

—This will provide you with information about the legal limits of various chemicals and your local supply may exceed these limits or the limits of EWG's scientific recommendations. 

First: It is almost impossible to make a circulating water filter made of various layers of plastic and metal and use a certain filter material (commonly in carbon). The fact that the filter concentrates and stores toxic chemicals means that it is not a good idea to open the filter and try to recover its parts. You may see online sources suggesting to dump the filter material to the outside, but you just create a small toxic waste area wherever you dump the filter material on any chemical substance. In the past, more companies took the filters back for recycling, but they don't do so anymore. Therefore, in addition to the above brands, the best option is to discard the filters in the trash can. 

Brita is the only larger company we found and currently recycles its filters in the following ways

. Pur filters can be recycled at Whole Foods.


Worked as an environmental and science reporter for more than 15 years. She established an award-winning ecological website and wrote a book about green living. In this review, she studied many water filtration systems to determine which ones are the most environmentally friendly and the most effective.

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