Home filtration · AquaTrace
Can water filters remove microplastics?
Some household filters can reduce microplastic particles, but not every filter works in the same way. If this is one of the reasons you use a filter, it helps to know what your system is actually designed to do.
The short answer
Yes, some filters can reduce microplastics. The amount they remove depends on the type of filter, how well it is maintained and the size of the particles in the water.
Not all water filters are the same
A bench-top jug, an under-sink system and a whole-house filter may all be sold as “water filters”, but they can be designed for very different jobs.
Some mainly improve taste and odour. Others are designed to physically block very small particles. That is why a filter that makes your water taste better is not automatically the same thing as a filter specifically suited to reducing microplastics.
What should I look for?
If microplastics are one of your concerns, start with the manufacturer's actual claims rather than the marketing on the front of the box. Look for clear information about particle reduction, independent testing where available, and how often the cartridge or membrane needs to be replaced.
Systems that use fine membranes or reverse osmosis are generally designed to provide a stronger physical barrier than a simple taste-and-odour cartridge. That does not mean every household needs one — the right choice depends on what you are trying to achieve.
Do I need to replace my current filter?
Not necessarily. If you are happy with your filter, the first question is whether it is doing what you bought it to do.
If your main reason for using it is taste, then microplastic removal may not be the deciding factor. If you bought it specifically because you want fewer particles in your drinking water, it is worth checking the manufacturer's evidence before spending money on a replacement.
How can I tell if my filter is actually helping?
This is where testing can be useful. Rather than guessing from a product description, you can compare water before and after the filter.
Testing incoming tap water and filtered water gives you a direct picture of whether your particular setup is changing the number and types of particles reaching your glass.
AquaTrace can analyse both samples using the same process, allowing the results to be compared clearly. Your report can show particle counts, size information, images and AI-assisted polymer classification for the detected particles.
What if the filter does not make much difference?
That is still useful information. It may mean the filter is primarily doing another job, that the incoming water already has a low particle count, or that the system is due for maintenance or replacement.
The result gives you evidence about your current setup so you can decide whether changing anything is worthwhile.
Before buying anything
Work out what problem you are trying to solve, check the evidence behind the product, and then decide whether an upgrade makes sense for your household.
Sometimes the best answer will be a new filter. Sometimes it will be replacing an old cartridge. And sometimes the most sensible answer will be to leave things exactly as they are.