What is a Class 1 water filter?
In general, better filters will remove finer particles. Each filter’s ability to remove particulates is measured against a certain “particulate class”, or particle size. Class I – 0.5 to 1 micron.
What does a 1 micron water filter remove?
The absolute 1 micron filter will more consistently remove Cryptosporidium than a nominal filter. Some nominal 1 micron filters will allow 20% to 30% of 1 micron particles (like Cryptosporidium) to pass through. Filter manufacturers may pay to have their filters tested to see if they remove Cryptosporidium or Giardia.
What does NSF 42 mean?
NSF International/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.
What is a Class 1 particulate?
Particulate Class I – Particles 0.5 to 1 micron in size Class II – Particles 1 to 5 micron in size Class III – Particles 5 to 15 micron in size Class IV – Particles 15 to 30 microns in size.
Is NSF and ANSI the same?
NSF-61 was developed by the National Sanitation Foundation (NSF), a global independent public health and environmental organization, and the American National Standards Institute (ANSI), which oversees the consensus for developing standards for manufacturing and procedures in the United States.
What does NSF 53 remove?
Contaminants that fall under the “health effects” category and can be significantly reduced by Multipure water filter products include arsenic, asbestos, lead, mercury, cysts, chlordane, MTBE, PCB, radon, toxaphene, and turbidity.
What NSF 372?
NSF/ANSI 372: Drinking Water System Components – Lead Content is an American National Standard that establishes a standardized methodology for the determination and verification of product compliance to minimize lead contaminants.