QUOTE(NightFelix @ Dec 15 2014, 09:28 PM)
Alright, in before that, do the
3M AP-1752 Plus have the same
NSF 42 Aesthetic Effects and
NSF 53 Health Effects certification just like the two 3M models above
(DWS2500T / DWS1000)?
I did some Googled but I only found NSF 42 certification.

The reason standards exists is to make sure products are conforming to specifications. However many manufacturers design the products with the sole aim to capture market share, hence in this event, they try to fulfill some standard while cut corners to bring advantages to them in capturing market share.
Water filtration / treatment is a very stringent specification, I really feel sorry for manufacturers that market products without even bother to ask the key questions
QUOTE
"what is not safe in the water and we shall definitely remove them?"
instead they care more about
QUOTE
"oh this price range is what consumer willing to spend, let's do something at this price and as long as water is clear, they will not care much"
Choosing a filter should not be primarily base on budget, I will say budget is important but the first question that consumer should ask is
QUOTE
What do I want to leave behind in my water? mercury? lead? sand? dust? rust?
I believe all we want to say is
"nothing harmful!" but unknowingly we go out and buy 1 water filter that can't filter all the things we don't want to exist in our water because of
"budget". I am not saying we don't need to have a budget, but if we have bought something that can't do the work, then later on have to buy again, wouldn't that cause much money even?
This post has been edited by d_goh: Dec 16 2014, 11:12 AM