Health & Wellness Blog

The PUR Difference

Trust PUR Replacement Filters, Because Not All Filters Are The Same

There are few things more enticing on a hot day than a tall ice-filled glass of great-tasting water from your PUR filter. To keep your water cleaner for many years to come, it’s important to change your filter in your PUR faucet filtration system and pitcher every 2 to 3 months.

PUR filters work hard reducing the variety of contaminants that can seep into your water as it works its way through the water system to your glass.* Materials in the filter are designed to adsorb contaminants as the water passes through.* Over time, the pores in the material fill up, diminishing their ability to keep delivering the cleaner water you expect. Many PUR faucet and pitcher filtration systems have filter change lights that turn red to indicate when your filter needs replacing.

When replacing the filter in your PUR faucet filtration system or pitcher, it is important to always use PUR branded filters. There are many universal and no-name branded filters available online and in stores. They might look similar, and claim to save dollar or two, but you can only get superior filtration from PUR filters installed in PUR systems.

4 Reasons to Use PUR Replacement Filters

It's like they say about beauty, it's what's on the inside that counts. A lot goes into every one of our filters. Here are 4 reasons why it's important to only use PUR replacement filters:

  1. Years of Research and Testing. For over 30 years, we’ve been developing innovative and affordable technologies for superior water filtration. We put a significant amount of rigorous testing into PUR filter technology to ensure that it meets the highest standards.
  2. Certified by Leading Water Authorities. PUR filters have been certified by two prominent independent water testing organizations, NSF and the WQA.
    1. NSF is a public health and safety organization that helps protect the world’s food, water, consumer products, and environment. They set the industry standards and conduct facility audits to evaluate every aspect of a product’s development. PUR Faucet filters are certified by NSF to reduce of lead and 70 contaminants.*
    2. The WQA (Water Quality Association) is the water industry’s trade association. They awarded PUR filters with their Gold Seal certification. The Gold Seal certifies that our filters have passed rigorous testing of industry standards, annual manufacturing facility audits, and comply with all WQA's requirements
  3. Filtration Technology. Contaminants that can seep into our water come in varying forms, shapes and sizes.* To make sure PUR filters adsorb most of these substances, we use multiple layers of filtration material within each filter. Our filters contain both proprietary blend of activated carbon and ion exchange materials. As water flows through the filter, contaminants like pesticides and pharmaceuticals are adsorbed by the carbon. Heavy metals like lead and mercury are adsorbed by the ion exchange materials.*
  4. Perfect Fit. Only PUR filters have been designed to perfectly fit your pitcher or faucet system. A universal filter may look similar and even appear to fit, but small differences and imperfections could allow water to seep around the cartridge without going through the filter... and without you even knowing about it. The industry certifications we’ve received are only for PUR filters used in PUR systems. With generic filters, there’s no way to guarantee the same level of filtration.

At the end of the day — and at the bottom of your glass — filtered water is better for you, your wallet, and the world at large. PUR filters have superior filtration, are affordable, and easy to install. 


*For a full list of contaminants, click here. PUR does not filter microbes.




There are plenty of filter options out there. What sets PUR apart from the rest?

We've Made History

For 30 years, our goal has been to make your water clean.

1986 - PUR, formerly Recovery Engineering, was founded by 24-year-old Brian Sullivan, a Harvard economics graduate.

1989 - William Butler survived 66 days at sea with the PUR Survivor 35 – the first hand operated Desalinator.

1994 - PUR invented the first faucet filtration system with Automatic Safety Monitor (ASM) gauge that lets consumers know when the filter is finished and can no longer remove contaminants.

2014 - PUR was the first to obtain certification from NSF for a new category of contaminants called “emerging contaminants" which includes substances like DEET and pharmaceuticals, for faucet and pitcher filters.

2016 - PUR traveled to Flint, Michigan to aid in relief efforts by testing Lead contaminated water and donating filters.

Our Faucet Filters Reduce 70 Contaminants*



PUR Faucet Filtration Systems are certified to reduce Lead.
Lead can enter your water through the pipelines and plumbing going into your home. Exposure to Lead can cause delays in mental or physical development in children as well as kidney problems and high blood pressure in adults.


PUR Faucet Filtration Systems are certified to reduce Mercury.
Mercury can make its way into the water system through the erosion of natural deposits along with factory and landfill runoff. Long term exposure to Mercury above regulated levels could lead to kidney damage.


PUR Faucet Filtration Systems are certified to reduce Total Trihalomethanes.
Disinfection by-products such as Total Trihalomethanes or TTHMs are a result of Chlorine mixing with organic and inorganic materials in the water. If ingested at levels above the regulated amount over a long period of time, TTHMs can cause liver, kidney damage.


PUR Faucet Filtration Systems are certified to reduce certain Industrial Pollutants.
Industrial Pollutants such as Tetrachloroethylene, which is used in dry cleaning fluids, and Benzene, used to make plastics, resins, nylon and synthetic fibers, enter fresh water sources through run off from factories and industrial plants. 


PUR Faucet Filtration Systems are certified to reduce certain Pesticides.
Pesticides such as Atrazine & Simazine can enter drinking water through agricultural runoff. Consuming certain pesticides at levels above regulated amount for an extended period of time, can cause liver, kidney and reproductive problems.


PUR Faucet Filtration Systems are certified to reduce certain Pharmaceuticals.
Oral drugs can pass through the human body and end up in the water supply. They can also enter water through flushing unused or expired medications down the toilet. Pharmaceuticals are not currently regulated in drinking water. 

Why Does A Water Filter Matter?

Contaminants can enter the water system daily, most of which we can't see, let alone pronounce.* That's why filtering your water is important. There is no simple fix for America's drinking water infrastructure. But there is a simple fix for yours.


*For a full list of contaminants, click here. PUR does not filter microbes.