WHen a product has NSF it doesnt mean it is GOOD. U must c which NSF standard that the product complies with. From the website that u give, it is stated that NESH complies with Standard 61 and 44.
NSF/ANSI Standard 44: Cation Exchange Water Softeners
Overview: This standard covers residential cation exchange water softeners designed to reduce hardness from public or private water supplies. Additionally, this standard can verify the system's ability to reduce radium and barium
http://www.nsf.org/business/drinking_water...t/standards.aspNSF/ANSI Standard 61
NSF/ANSI Standard 61, also adopted on October 7, 1988, covers indirect additives products and materials, including process media, protective materials, joining and sealing materials, pipes and related products, mechanical devices, and mechanical plumbing devices (including faucets). In essence, every material from the well or water intakes through to the faucet are covered.
http://www.nsf.org/business/water_distribu...DistributionSysThese two standards do not reflect how good the product is. 3M APDWS1000 on the other hand complies with standard 42 and 53 which verified that this filter could reduce specific aesthetic or non-health-related contaminants (chlorine, taste and odor, and particulates) and also filter contaminants which are bad for our health. Therefore, it is safe to direct drink it.
http://www.nsf.org/business/drinking_water...t/standards.aspRead through NESH, the most interesting component is the Ozone filter which could be used as a sterilizer. Based on the spec and performance, it should b safe to direct drink it. Just wondering why they didnt meet standard 42 and 53
NSF is important. There are many filters in the market that claims that they could do this and that, it could b false claims and it might be true, we as consumer cant tell. However, if the product is certified by NSF then it must b true. Do google on Diamond water filter, what they claim they could do in the past were false claims but customers trusted them and paid huge amount of money believing that DIAMOND could produce healthier water.
Added on July 7, 2012, 11:51 pmI did a google search on Cation Exchange and here is what i got
Cation exchange: Cation exchange is a process similar to anion exchange, but the particles removed are positively charged (cations). Water softeners, which remove calcium, magnesium, and iron from water . . . .
http://www.advancedwaterfilters.com/faq.php?q_id=10In the nesh website, NESH Qoozo has Calcium Ionized Clay which adds calcium into water but their filter complies with NSF standard 44 that means calcium is being removed, contradicting the purpose of the calcium ionized clay...
Another thing, Ozone is good at killing bacteria, virus and etc. It could also be used to purify food and sterilize kitchen ware but will it also destroy the good mineral like calsium, magnesium and etc in water? This i really cant find it online. Nd some sifu to share their views here
This post has been edited by zheilwane: Jul 7 2012, 11:51 PM