If you’re like most Americans, you’ve probably asked yourself questions like “do I really need a water filter?” or “shouldn’t my tap water already be clean?” Rest assured, you’re not alone. According to the Environmental Working Group, more than half of Americans think their tap water is unsafe, and 40 percent won’t drink it.1 So, it’s no surprise more households are choosing to filter their drinking water.
With so many water filters on the market to choose from, the biggest challenge is finding one that effectively removes many of the harmful contaminants found in our drinking water. While many water filters may look similar, it’s important to check what they’re actually certified to remove.
By reading this blog, you’ll learn what the most common types of water filters are, what contaminants they reduce, and which one is the right one for you.
Why Filtering Your Home’s Tap Water Is Crucial
Some people assume that as long as their tap water is clear and meets federal safety standards, there’s nothing to worry about. However, that’s not always the case.
While municipal water systems are regulated and treated before it reaches your home, contaminants can still find their way into your drinking water. Aging pipes, corroding plumbing, environmental pollution, and agricultural runoff are some of the ways contaminants can enter your drinking water.
Depending on where you live, your tap water can contain common contaminants such as lead, PFAS (“forever chemicals”), arsenic, chromium, nitrates, chlorine, or microplastics. Long-term exposure has been linked to potential health issues, ranging from gastrointestinal illnesses to neurological damage and even cancer.2
That’s why many homeowners and renters choose to filter their drinking water. It’s not because tap water is inherently unsafe, but because they want to reduce contaminants that may still be present, improve taste and odor, and have more confidence in their everyday drinking water.
Choosing the Right Water Filter Starts With Understanding Your Options
With concerns about drinking water quality on the rise, more people are looking for ways to take control of the water they and their family drink every day. However, choosing a water filter isn’t always straightforward.
Let’s explore the 4 common types of water filters:
1) Pitcher Filters
For many households, pitcher filters are the first step into water filtration.
Pros and Cons of Pitcher Filters
One of the biggest advantages of pitchers filters is their simplicity. They’re affordable, easy to use, and require no installation – making them a popular choice for renters, students, and anyone looking for a quick way to improve the taste of their tap water.
However, they are designed for basic filtration (like reducing contaminants such as chlorine, sediments, and certain heavy metals like lead), rather than comprehensive contaminant reduction. However, most standard models miss harmful contaminants like viruses, bacteria, microplastics, nitrates, fluorides, and “forever chemicals.”
Another common concern is the convenience factor over time. Since pitcher filters have a limited capacity, households that drink a lot of water may find themselves constantly refilling the pitcher. Not to mention, the filters need to be replaced regularly to maintain performance.
So who are pitcher filters a good fit for? Overall, pitcher filters are best suited for consumers looking for an affordable, low-maintenance option to improve the taste of their tap water and reduce some harmful contaminants.
However, if you’re looking for more protection from a wider range of impurities, you may want to consider more advanced filtration technologies.
2) Gravity Filters
Like standard pitcher filters, gravity filters rely on gravity to move water through a filter.
Pros and Cons of Gravity Filters
Gravity filters are typically designed with a much larger water capacity than standard pitcher filters and often feature a stainless steel countertop design. While most pitcher filters hold about 0.5 to 1 gallon of water, gravity filters often hold 1 to 3 gallons, allowing them to filter more water at once and requiring fewer refills.
They also don’t require electricity, plumbing, or installation, which makes them a convenient option for consumers looking to enjoy better-tasting water without the commitment or cost of a more permanent filtration system.
However, gravity filters do have limitations. While they are designed to reduce certain contaminants, they are generally not as effective as more advanced filtration systems at reducing a broader range of contaminants, (such as arsenic, nitrates, fluoride, and Total Dissolved Solids).
The next option is a whole-house water filtration system, which filters water throughout your entire home.
Pros and Cons of Whole-House Filtration Systems
Whole-house water filtration systems are designed to filter water before it enters your home’s plumbing system. Unlike point-of-use filters, such as pitcher filters or countertop systems, whole-house filters treat water at the source and provide filtered water throughout your entire home (kitchen, showers, sinks, laundry appliances, toilets, etc.)
One of the biggest advantages of whole-house filtration is convenience since instead of filtering water from a single faucet, they provide filtered water throughout your home. Whole-house systems primarily target sediment, chlorine, and hard water minerals, but may not address a broader range of contaminants like heavy metals, fluoride, “forever chemicals”, and nitrates.
Another major consideration is cost. Because whole-house systems are installed at your home’s main water line, they typically require professional installation and a larger upfront investment compared to other water filters.
Ultimately, whether a whole-house system is worth it depends on your specific needs. For homeowners who want cleaner water throughout their entire home, it can be a valuable investment. But for consumers whose main priority is the quality of their drinking and cooking water, a point-of-use system would be a better option.
Reverse Osmosis Systems: The Most Comprehensive Drinking Water Filtration Method
After comparing the different types of water filters (pitcher filters, gravity filters, and whole-house systems), it’s clear that every type of water filter has its own set of advantages and limitations.
However, when it comes to the water you drink and cook with, many consumers are looking for more than just improved taste and odor. They want a filtration system designed to reduce a broader range of tap water contaminants so they can have complete confidence in the quality of their drinking water.
That’s where reverse osmosis water purifiers come in.
How Does Reverse Osmosis Work?
Reverse osmosis (RO) is a water purification process that uses pressure to force water molecules through a semi-permeable membrane. This membrane has microscopic pores that block dissolved salts, minerals, heavy metals, and bacteria. The purified water passes through, while the concentrated contaminants are flushed away as wastewater.
If you're looking for a water filter for lead and PFAS removal, reverse osmosis is one of the most effective filtration methods available. It can reduce many contaminants that standard filters leave behind, including:
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Lead & other heavy metals
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Fluoride
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Nitrates
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Arsenic
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PFAS (“forever chemicals”)
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Total dissolved solids (TDS)
Reverse Osmosis vs Pitcher Filters:
Pros and Cons of Reverse Osmosis
The biggest advantage of reverse osmosis is its ability to reduce a wider variety of contaminants compared to many traditional filtration methods. This makes it especially appealing for households that want cleaner, better-tasting water for drinking and cooking.
Other benefits include:
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Improves taste and odor
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Designed specifically for drinking and cooking water
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Available in convenient countertop and under-sink options
Like all filtration systems, there are a few things to consider when it comes to reverse osmosis. RO systems typically require periodic filter replacements and may have a higher upfront cost than basic options like pitcher filters.
However, for consumers prioritizing comprehensive drinking water filtration, reverse osmosis offers one of the most comprehensive solutions for purifying your drinking water.
The #1 Reverse Osmosis Water Purifier: AquaTru
AquaTru combines the power of reverse osmosis technology with countertop designs, making water filtration convenient and accessible. What’s more, AquaTru water purifiers are independently tested and certified to NSF standards by IAPMO to remove 84 harmful contaminants from your tap water.
4-Stage Reverse Osmosis Technology
Stage 1 & 2: A mechanical pre-Filter captures larger particles like sediment and rust, while a carbon filter removes chlorine and chloramines for cleaner, better-tasting water.
Stage 3: An ultra-fine RO filter eliminates harmful inorganic chemicals, including lead, microplastics, chromium-6, arsenic, nitrates, and heavy metals.
Stage 4: A coconut shell carbon block filter reduces volatile organic compounds (VOCs), including rocket fuel, prescription drug residue, and “forever chemicals” (PFOS & PFOA).
AquaTru’s powerful 4-stage filtration system delivers clean, healthy water with every sip, and is certified to reduce more contaminants than any
countertop filter or fridge filter.
Ultimately, the best water filter for drinking water depends on your needs, budget, and the contaminants you want to reduce. By understanding how each type of filtration works and what it's designed to capture, you can choose the option that best fits your home and enjoy greater confidence in the water you drink every day.
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