Particulate contaminants including asbestos, rust, sediment, dirt, and scale as small as 0.2 microns (1/300th diameter of a human hair).

ok lah. similar to HEPA spec already

HI need advise for Bacfree water filter.

Am considering bacfree (counter top) drinking water filter model BS-1 due to the affordable cost (RM895 incl installation) and cheaper maintenance (RM180 to change filter every year). But heard that their after sales service is not good, can anyone share their experience?

Called their HQ and it seems that the person i spoke to really do not hv customer service at heart, the way she answered my questions also in a not so patient way. Wondering the service of their branches (if any) will be better.

all advice are appreciated, many thanks!

well, there were two forumers who PM me asking for a table top unit, so i jus posted this photo to share with other members

Rocket type filter are only good as sendiment filtration ie 10 micron . usually cannot do a good job if incoming water is filthy , once packed brown water go all the way through . So you really need the largest capacity type & thousand litre of backwash water

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Added on December 7, 2012, 1:07 pmIf anyone is serious on clean water- move your residence to any Hilly area , or prestigeous areas like Putra Jaya , Shah Alam. Life is never fair . I have a Rm3400 medium size  Bac free system -need 10mins back wash every 2 days-water bill went up by at least Rm20 in UEP Subang

well, when that time you bought the water filter, everyone from the house will be borrow from you, and then you can collect montly rental usage from them and start making money. 
Well, I think Philips might be facing difficulty of global production challenge, especially the UV light, its very high costing. 
Also, is not easy to have NSF/WQA Certified, the water purifier in order to sell in every countries have to re-verifiy from NSF/WQA every 5years.
Wow, that was very cheap. So you only replacing it every year? 
Outdoor filter are recommended to install its because it can provide clean water for entire house using but not for drinking purpose. Like you taking shower, washing or cleaning etc. 
Now a days, having indoor (POU)point-of-use water purifier is a must for every housing, because it is for drinking or cooking purposes. Outdoor (POE)point-of-entry water filter is an optional choices but also recommended to install one if you need it/your places water are too dirty filled with dirt/sands.
So, conclusion, if you budget are afford to, get both, else get indoor water purifier first. Boiling technology is not as efficiency. 

If worried about that then buy the filter from Singapore and replace your self.
http://www.h2ofresh.com/filters.htm
1 set SGD 79.00 only Approx RM198.00
2 set SGD 150.00 only Approx RM376.00
based on your conservative calculation, still cheap compared to other NSF 53 cert filter.
Coupled together with low initial cost, sure can consider.

Virtually double the initial cost  of Aquasana 
Need approx 5 years before cost equivalent to Aquasana, if follow aquasana recommendation of 1000 litre then 8 years.
Plus no Singapore Holiday 
err I am start to sound like a salesman.... 

Sand Filter
- 5-10 microns
- Heavy & big vessel but durable if the body vessel is using Fibre Reinforced Polymer
- Backwash function makes it more low maintaining cost (but you still need to change the filter roughly around 5years time)
- Filter media are from natural resources so is easily to be available all time

3M AP902
Not sand or membrane. Using non-woven pleated media. The size is very compact (smaller than membrane). Better filtration compared to sand but not as good as membrane. Could withstand upto 8 bar of pressure and would not significantly reduce your incoming water pressure. However, maintenance cost is more exp than sand but close to membrane.
- Quote by zheilwane (one of the 3M seller forumer here)

Hopes help you out.

try avoid too expensive outdoor filter, ppl can steal it.
the outdoor filter mainly is to filter make sure the water is not contaminated and not yellowish (Use for bath, washing machine etc)

And you got to need a good water filter indoor for ur drinking just like espring, if you always cook ur water before drinking it then can consider 3M AP which is cheaper.

If not mistake AP902. I get the price from fair. Purchase indoor & outdoor RM2K++. May I know which model few hundred? what the price you get for indoor, outdoor & since when you get quotation?