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Water Filter Knowledge

Water Filter Standards

What should I look for when choosing a Water Filter?

Look for the NSF Standard Rating

NSF is an independent global health and safety organization.

What does NSF do?

Founded in 1944 as the National Sanitation Foundation, NSF International tests and certifies products and writes standards for the food, water and consumer goods industries. The name was changed to NSF International in 1990 as services were expanded worldwide.

1. NSF International is a global, independent, public health and safety organization with a mission to protect and improve human health.
2. Dedicated staff in North America, Europe and Asia to assist in product certification.
3. Over 200,000 square feet of laboratory space with one of the largest drinking water treatment unit test facilities with the ability to perform full chemical, microbiological and physical testing.

NSF/ANSI 42: Aesthetic Effects 

  • NSF/ANSI 42
    Filters are certified to reduce aesthetic impurities such as chlorine and taste/odor. These can be point-of-use (under the sink, water pitcher, etc.) or point-of-entry (whole house) treatment systems.

NSF/ANSI 42 is one of two main NSF standards for evaluating safety and integrity of residential water filters. NSF/ANSI 42 establishes the minimum requirements for the certification of POU/POE filtration systems designed to reduce specific aesthetic or non-health-related contaminants (chlorine, taste, odor and particulates) that
may be present in public or private drinking water.
The scope of this standard includes material safety, structural integrity and aesthetic, structural integrity and aesthetic claims. The most common reduction claims addressed by this standard are chlorine, chloramines, iron, manganese, hydrogen sulfide, pH neutralization and zinc reduction. In addition, products certified only as components are found under NSF/ANSI 42 and are evaluated for material safety and, if pressure bearing, structural integrity.

NSF/ANSI 53: Health Effects

NSF/ANSI 53

  • Filters are certified to reduce a contaminant with a health effect. Health effects are set in this standard as regulated by the U.S. Environmental Protection Agency (EPA) and Health Canada. Both standards 42 and 53 cover adsorption/filtration which is a process that occurs when liquid, gas or dissolved/suspended matter adheres to the surface of, or in the pores of, an adsorbent media. Carbon filters are an example of this type of product.


NSF/ANSI 53 is the second NSF benchmark standard which addresses reduction claims for residential water filters. Standard 53 establishes the minimum requirements for the certification of POU/POE filtration systems designed to reduce specific health-related contaminants, such as Cryptosporidium, lead, volatile organic chemicals (VOCs) and asbestos that may be present in public or private drinking water.
The scope of this standard also includes material safety, structural integrity and other health-related contaminant reduction performance claims. The most common reduction claims verified by this standard are heavy metals, inorganics and volatile organic chemicals.

Atomic Has Been Privileged to Support

Atomic Has Been Privileged to Support

Founded by the the son of a US Navy veteran, Atomic Filters has been proud to support the following Charities that support our veterans and their families.

Atomic Filters has supported Special Operation Warrior Foundation, UDT Seal Foundation and Fold of Honor.

Founded by the the son of a US Navy veteran, Atomic Filters has been proud to support the following Charities that support our veterans and their families.

Atomic Filters has supported Special Operation Warrior Foundation, UDT Seal Foundation and Fold of Honor.

Based on 3737 reviews
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Very Pleased

My filters were delivered quickly and the price was competitive. Good work!

Fast Response

Great service. Received my order on time.

Finally, a more reasonable price!

The standard price for these particular filters has obviously been a rip off by many places that sell them. One need only compare their size, that is the amount of material needed to make them, with other sizes that are similar and sell for a much lower price.
Atomic filters has always had the best price, but their new brand of the identical sized filter being much lower is a relief. Thank you for providing that. Perhaps if lots of people buy them the price can be lowered even more to what I would guess would provide a fair profit for everyone.

Solid replacement filters - TopTech TechPure TT-FM-1620 OEM (16x20x4)

Received the filters quickly. Excellent price. They fit perfectly in our heat pump filter rack. The only thing I wish is that TopTech would offer a MERV 13 filter for even cleaner air.

Outstanding service.

Excellent product as advertised ... Prompt efficient service and communication

Fixed my issue.

Both of my uv lights burned out at the same time. I replaced them and they still did not work. Next step was replacing the ballast. Super easy to do it. Lights working again.

Saved money

Arrived when promised, exactly the right product, and delivered to my door for less than i had been paying for the filter.

Great cust serv. off brand filter so so

Atomic Filters customer service is top notch. Tried Carrier knock-off brand. one worked one did not in a carrier Air purifier.IE the bad filter caused an error code. Atomic paid return ship and sent new carrier brand replacement which was nice.

Great Service

Atomic Filters is great. Very much appreciate being able get the filters needed at a good price and so quickly. And customer support was great when an incorrect size (that I ordered) needed to be returned. A new customer for life here!

Perfect fit, Excellent service!!

The filter is an exact fit for my Carrier Infinity system. Customer service is top notch and shipping is fast. Atomic is my go-to place.

As good as expected, better than anticipated.

As good in construction as the more expensive filters that I bought for years, and the Atomic Filter cost less also.

Fit perfect, didn't have to change anything or do anything different. It is now performing it's duty.

Very nice filters. Definitely will be ordering these again instead of the 3M Ive used for the last 18 years . Like these are really well made. And price is on point. And very quick delivery.

Air filters merv16

They don’t come much better then these and are great value as well

Cleaner Air, Better Price

Judging by the price, original equipment HVAC manufacturers are quite proud of the filters they sell. My guess is that most don't manufacture filters and buy them from outside suppliers. In my experience, Atomic filters provide the same level of filtration and considerably lower cost than those sold by the companies that manufacture heating and air conditioning units.

Phenomenal! So Impressed

I ordered direct from Atomic Filters instead of ordering on Amazon. I can’t tell you how great this company is. Not only was the product cheaper on Atomic Filters, but the shipping was super fast. I 100% recommend Atomic Filters. Great company!

Same quality slightly better price...

Keep competitive in your pricing and you'll continue to get my business.

Will re-order every year as needed. Good service from the company.

We have been pleased with these filters and will continue to reorder as needed.

Great all around find.

I’ve lookied for these HEPA filters from several sources.
Atomic filters had the exact match, great price and they arrived quickly.
Will definitely order again

Perfect

Love the filter. Perfect size. Love the company more. Have bought several times from them since this filter is hard to find. This time the filter came in and FedEx had crushed it in delivery. Called CSR service and sent them a picture of the crushed box and they immediately sent me out another one which arrived in great shape. Will continue to buy from Atomic Filters because of their great product and great customer service!

Love it

Received my filters in excellent condition. The price for the two filter package saves me money. They were shipped quickly, and I have a reminder with the company to ship on a timely basis! Great company to work with.

HEPA filter

Fits good. Fast delivery..mail buy from again..

Filter replacement

Replace my original equipment filters with atomic house, brand filters.
Filters are very good quality, same fit size style and function. Would definitely recommend these filters as replacements.

Great customer service

Great customer service , however shipping was slow to get to me

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