What You Should Know about A Refrigerator Filter?

Refrigerator filter is a necessary part in every kitchen refrigerator. It can effectively remove odors and impurities from water, family members drink pure water easily. When buying a refrigerator, the manufacturer has installed a proprietary filter on it, but any refrigerator filter can not be used all the time, therefore, before replacing the filter, we must know the following points.

The material of refrigerator filter
Before you find the right refrigerator filter for your equipment, learn about replacement filter materials is very necessary. Not all refrigerator filters are made of the same material, some can only simply remove residual chlorine and odors in the water and improve the taste, however others can effectively remove heavy metals, insecticide, and even pharmaceuticals in the water. Be sure to check to see if it can remove more impurities before buying a refrigerator filter.     

NSF Certification for Refrigerator Filters
NSF International is a not-for-profit non-governmental organization specializing in standard setting and certification services in the fields of public health, safety, and environmental protection. It is an authority in the field of public health and safety. Refrigerator filters are one of the organization's specialized testing areas. Every qualified filter available for use is NSF certified to demonstrate their quality.

NSF 42: Any water filter worth its salt will be at least NSF 42 certified. A refrigerator filter with an NSF 42 rating will reduce impurities such as chlorine while improving taste and odor.

NSF 53: Refrigerator filters with this rating remove a wider range of contaminants that cause health problems, including arsenic, mercury, radon, and asbestos, among others.
Refrigerator filters with an NSF 372 rating will not immerse lead in water.

Refrigerator Filter Compatibility
Not all refrigerator filters are universal, although refrigerators of the same brand will have different designs, and refrigerator filters will be installed differently. You'll need to check your refrigerator's owner's manual to find the refrigerator filter model, or remove the old filter to see its model number, and purchase a replacement filter that fits the appropriate model.

Refrigerator filter replacement frequency
Under normal circumstances, the replacement frequency of refrigerator filters is 3-6 months, and the replacement frequency of water quality in different regions is different, which should be considered according to the actual situation.