8 Best Water Filters for Microplastics: Drink Clean Water
Concerned about plastic particles in your drinking water? Discover which filtration technologies actually remove microplastics and the top water filters that keep your water clean.
Published May 5, 2025.
Worried about plastic particles in your drinking water? You're not alone. With recent studies revealing just how common microplastics are in our water supply, many of us are looking for effective solutions.
Let's explore why microplastics matter and how the right water filter can help you and your family enjoy cleaner, safer water every day.
» Remove microplastics and filter your drinking water
Our 8 Best Water Filters for Microplastics
Waterdrop Countertop RO Filter System
Advanced multi-stage filtration with UV protection for complete microplastic removal.
PUR PLUS 30-Cup Water Filter
Large-capacity dispenser with NSF-certified microplastic filtration.
Waterdrop 800 GPD Tankless RO System
Powerful 10-stage filtration perfect for city water contaminants.
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What Are Microplastics
Microplastics are tiny plastic fragments measuring less than 5mm long, as defined by the U.S. National Oceanic and Atmospheric Administration (NOAA). They enter our environment—and ultimately our drinking water—in two main ways:
- Primary Sources: Microplastics that were intentionally manufactured at microscopic sizes for products like skincare exfoliants, fishing nets, or synthetic clothing.
- Secondary Sources: Larger plastic items that break down over time into microscopic particles through environmental degradation.
These microplastics may affect your health and are surprisingly widespread in our water. Studies have found that a single liter of bottled water can contain up to 240,000 pieces of plastic, with 90% being nanoplastics (smaller than 1 μm) [1].
» Discover how to remove microplastics with water filters
How Different Filtration Technologies Target Microplastics
Not all water filters are created equal when it comes to removing microplastics. Here are the main technologies that can effectively tackle these tiny particles:
- Reverse Osmosis (RO): Uses a membrane with tiny pores to force water through while blocking microplastics. It's most effective for removing even the smallest particles.
- Activated Carbon: Works by making contaminants stick to its porous surface. It's good for larger microplastics, especially in multi-stage systems.
- Membrane Filtration: Acts like a fine sieve with specific pore sizes. Captures many microplastics but may miss the smallest ones.
- Nanofiltration: Uses even smaller pores than regular membrane filters. Some advanced systems use charged membranes to repel similarly charged microplastic particles.
» Learn about reverse osmosis filters and if they're safe for drinking water
How Long Does It Take to Filter Microplastics
The time required to filter microplastics varies by system type:
- Pitcher Filters: They process small amounts at a time, typically taking 10-15 minutes for a full pitcher.
- Under-Sink Systems: They're connected directly to water lines and provide filtered water on demand with flow rates around 0.5-1 gallon per minute.
- Gravity-Fed Filters: They rely on sedimentation and can be time-consuming, especially for removing smaller microplastic particles.
- Countertop RO Systems: MAYU's Waterdrop RO processes water quickly with flow rates of 75-100 gallons per day for immediate access to microplastic-free water.
» Discover the benefits of drinking filtered water
Key Features to Look for in a Microplastic Water Filter
There are several water filters that claim to remove microplastics, so consider the following key features to narrow it down to the best options:
- Filtration Technology: Choose filters with reverse osmosis or sub-micron filtration capability to effectively capture microplastics as small as 0.0001 microns.
- Certification Standards: Look for NSF/ANSI-certified filters that are specifically tested for microplastic removal, ensuring verified performance against particles ≥0.5 µm.
- Multi-Stage Filtration: Select systems with multiple filtration stages to address microplastics and other contaminants for complete water purification.
- Ease of Installation and Maintenance: Opt for user-friendly systems requiring minimal setup and clear filter replacement indicators to ensure consistent performance.
» Learn easy methods for detecting microplastics in drinking water
Top Water Filters That Remove Microplastics
Based on filtration technology, effectiveness, and additional features, here are our top recommendations for microplastic removal:
1
MAYU Waterdrop RO Countertop
Complete microplastic protection, providing you with exceptionally clean drinking water.
Installation
No (countertop unit)
Filtration accuracy
0.0001 micron
Why it's a top pick
MAYU offers the best overall water filtration system for microplastics because its 0.0001-micron filter effectively removes even the tiniest plastic particles between 0.1 and 1 micron.
The smart display screen gives you instant information about your water quality, eliminating guesswork about what you're drinking. This is particularly important in homes where the state of your water quality may vary throughout the year.
Plus, its 3:1 drain ratio and water recycling technology make it highly efficient, wasting significantly less water than typical RO systems.
The hot and cold water option means you can enjoy perfectly clean water at your preferred temperature without waiting, making it incredibly convenient for daily use.
Pros and cons
Hourly UV sterilization
Smart display for water quality monitoring
Retains healthy minerals
Higher price point
Needs electricity to operate
2
PUR PLUS 30-Cup Water Filter Dispenser
Installation
No (countertop/refrigerator)
Filtration accuracy
≥ 0.5 µm to < 1 µm
Why it's a top pick
PUR PLUS offers the best high-capacity filter for large families because its 30-cup design means you'll always have plenty of filtered water available without constant refilling.
The locking system prevents accidental mixing of filtered and unfiltered water, giving you confidence in what you're drinking. This is great for busy households where multiple people need access to clean water throughout the day.
Plus, its NSF certification confirms it effectively removes microplastics and contaminants like lead, heavy metals, and chlorine. The dispenser fits easily in your refrigerator, ensuring you always have cold, refreshing water ready whenever you need it.
Pros and cons
Fits refrigerator easily
NSF certified filtration
Large 30-cup capacity
Frequent filter replacements
Less effective filtering
3
Waterdrop 800 GPD Tankless RO System
Installation
Yes (under-sink plumbing)
Filtration accuracy
0.0001 microns
Why it's a top pick
Waterdrop offers the best filter for urban water supplies because its 10-stage filtration system targets common city water contaminants like PFAS, lead, chlorine, and microplastics with exceptional thoroughness.
The 800 GPD (gallons per day) flow rate ensures you never have to wait for filtered water, even during peak usage times. This is helpful in urban areas where water quality can contain hidden contaminants.
Plus, the integrated UV sterilization light kills 99% of bacteria and viruses that traditional filters might miss.
The system's efficient 3:1 water-to-waste ratio is better than many RO systems, helping you conserve water while still enjoying premium filtration quality.
Pros and cons
10-stage comprehensive filtration
High flow rate
UV sterilization included
Complex installation required
Higher water waste
4
LifeStraw Go 2-Stage Filter Bottle
Installation
No (ready-to-use bottle)
Filtration accuracy
1 micron (removes particles 5mm to 1 micron)
Why it's a top pick
LifeStraw offers the best portable filter for outdoor adventures because its self-contained design means you can turn virtually any water source into safe drinking water wherever you go.
The lightweight construction makes it easy to carry on hikes, camping trips, or travel without adding significant bulk to your pack. It's excellent for use during outdoor activities where access to clean water is limited.
Plus, it's made with 50% recycled plastic and is BPA-free, aligning with eco-conscious values while protecting your health.
The two-stage filtration system removes 99.999% of microplastics, along with bacteria and parasites that might be present in outdoor water sources, giving you the benefits of clean water.
Pros and cons
Extremely portable design
Made with recycled materials
Filters natural water sources
Limited water capacity
Requires regular sipping/suction
5
Aquasential® Smart Reverse Osmosis System
Installation
Yes (under-sink plumbing)
Filtration accuracy
≥ 0.5 µm to < 1 µm
Why it's a top pick
Aquasential offers the best choice for well water filtration because its instant water quality data display lets you monitor exactly what's in your water, which is crucial for well sources that can vary seasonally.
The filter change alerts ensure you stay on top of your water filter's lifetime, maintaining optimal filtration performance. This product is best suited for well water users who need to monitor water quality closely.
Plus, its push-button operation makes getting clean water simple and convenient. The system is NSF/ANSI certified to standards 58 and 401, confirming its effectiveness against a wide range of contaminants, including microplastics, PFAS, pharmaceuticals, and heavy metals common in well water.
Pros and cons
Real-time quality monitoring
Filter change alerts
NSF/ANSI dual certified
Professional installation needed
Higher initial cost
6
U1 Space-Saving 4-in-1 Water Filter System
Installation
No (countertop unit)
Filtration accuracy
0.1 to 1 micron
Why it's a top pick
U1 offers the most advanced multi-stage filtration because its 5-stage system combines multiple technologies (UV, RO, hydrogen) to provide exceptionally clean water in a compact form factor.
The alkalinity adjustment changes the pH level of your filtered water, creating potentially healthier water that many users prefer for improved taste and health benefits.
Plus, its instant hot water feature eliminates waiting time for tea, coffee, or cooking.
The hydrogen and water content display gives you information about your water's properties, while the custom cup size dispensing makes it convenient to fill anything from a small glass to a large pot.
Pros and cons
Five-stage comprehensive filtration
Alkalizes water naturally
Instant hot water
Complex maintenance needs
Higher upfront investment
7
Aquasana Claryum® 3-Stage Max Flow
Installation
Yes (under-sink plumbing)
Filtration accuracy
NSF certified (≥ 0.5 µm to < 1 µm)
Why it's a top pick
Aquasana offers top performance for hard mineral water because its optional water conditioner attachment can be added to prevent scaling and extend filter life when dealing with mineral-rich water sources.
The minimal use of plastic parts in the filter construction reduces potential plastic leaching, adding another layer of protection. Choose this if your home has hard water; it not only helps with the effects of drinking hard water but also improves appliance longevity.
Plus, it's NSF/ANSI certified to remove 99% of microplastics and contaminants while using a combination of activated carbon, ion-exchange, and membrane filters for thorough purification.
The max flow design ensures you get clean water quickly without the typical slow dispensing of many filtration systems.
Pros and cons
Optional water softening
Minimal plastic construction
NSF-certified performance
Softener sold separately
Under-sink space required
8
AQUA TRU Countertop Water Purifier
Installation
No (countertop unit)
Filtration accuracy
≥ 0.5 µm to < 1 µm
Why it's a top pick
AQUA TRU offers the most eco-friendly filtration because its patented technology makes it 80% more efficient than conventional RO systems, dramatically reducing water waste.
The glass carafe storage eliminates concerns about chemicals leaching from plastic containers into your purified water. This is a top choice if you're environmentally conscious and want premium filtered water good for health.
Plus, it requires no plumbing or installation, making it perfect for renters or those who don't want permanent modifications.
The NSF/ANSI certified filtration system effectively removes microplastics, heavy metals, inorganic chemicals, and prescription drug residues, providing comprehensive protection in a convenient package.
Pros and cons
80% more water-efficient
Glass storage container
No plumbing needed
Smaller overall capacity
Regular waste emptying
Tips to Maximize Microplastic Filtration Benefits
You can consider the following practical tips to help maximize the benefits of your microplastic water filter:
- Follow the Replacement Schedule: Ensure you replace filters according to the manufacturer's timeline to maintain optimal microplastic removal efficiency.
- Monitor Source Water Quality: While your filter removes microplastics, knowing your source water quality helps you know when additional precautions might be needed.
- Use Filtered Water Consistently: Make the most of your investment by using filtered water for drinking, cooking, and food preparation to minimize microplastic exposure.
- Maintain Your System Properly: Regularly clean external components and follow maintenance guidelines to prevent contamination and extend filter life.
» Take a look at what you need to do if you drink contaminated water
Pure Water, Pure Health: Optimizing Your Microplastic Filtration
To unlock the full potential of microplastic filtration devices like the MAYU Waterdrop RO, it's essential to integrate filtered water into your daily routine. Consistently using properly filtered water for drinking and cooking can significantly reduce your microplastic exposure.
Along with filtration, consider storing water in glass or stainless steel containers rather than plastic to prevent recontamination. With these practices, you can experience the significant benefits of microplastic-free water in your home and for your family's health.
» Learn more about MAYU's advanced water filtration technology
References
- Homin, Jiyoon, Seonghyeon, and Junho, “Microplastics in water systems: A review of their impacts on the environment and their potential hazards,” ScienceDirect, Mar. 2023. Available: https://www.sciencedirect.com/science/article/pii/S2405844023015669
Disclaimer: The information published by Mayu Water is not a substitute for the expert knowledge, advice, and recommendations of trained professionals. We strongly recommend consulting with industry experts and primary or scientific sources before making any health, research-related, or other important decisions.
