NSF International (accredited by the American National Standards Institute (ANSI)) has developed three standards applicable to 4396841 filter: NSF/ANSI 42, 53, and 401, which are their meanings:
There are 3 large testing organizations that certify these standard filters and allow their manufacturers to put certification badges on their water filter w10295370a and packaging. These organizations are the Water Quality Association (WQA), the International Association of Pipeline and Machinery Officials (IAPMO) and the NSF itself.
For those who want to use a filter but want to find a more affordable filter, we will guide you through the necessary steps to ensure that the filter you are considering meets your requirements.
42 Covers material safety to ensure that the physical components of the filter do not immerse contaminants such as arsenic in water and ice. If you want to dechlorinate, deodorize, and deodorize, this is also the standard you are looking for.
53 Covers a large number of health-related pollutants, including all pollutants from lead to parasites to asbestos.
401 covers trace drugs ranging from ibuprofen to bisphenol A to DEET.
If your only task is to find these certifications on the water filter 4396841 you are considering, this will be a simple task. but it is not the truth.
In this way, you do not need to look at the certification records of the selected filter to understand which pollutants it actually removes. To find these records, you need to search each organization’s certification database (this is the link for each organization: WQA, IAPMO, and NSF). Keep in mind that these databases can be difficult to use.
Reasonable warning: You must endure the red tape of testing agencies and certification standards.
Just because the filter has a badge (marked with NSF in the blue circle) does not mean it fully meets the certification requirements. Suppliers of problematic aftermarket filters can add badges to their products by meeting some basic requirements and skipping those you might really care about. The fake filter will have a very realistic fake badge.
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