With so many people saying the tap water we receive has a high chance of being contaminated to a certain degree there is a large concern as to how we can drink something that is not contaminated. Of course this rise in the problem has resulted in many people coming up with newer better ways of getting about things. So you have a lot of options to choose from. Now keep in mind that based on your need what you need could change, so what is important is to first establish what your needs are. You can visit the great website using this link http://www.osmosis.com.hk/about-us/ for NSF certified filter.
I say this as some people look to buy something off the internet by searching something like buy water filter online. This would not do. You need first realize the types that are out there. That is to say in broader sense purifiers or filters can be divided in two groups. The first is the house/point-of-entry (POE) system. This is a much larger set up. All the water that enters your house has to go through this. It is generally connected to your meter as well. If you are really scared to even bathe in something that could be possibly contaminated it would best to go with this. If you are someone who has very sensitive or have a spouse or child with a similar situation it would be best to go with this method. But keep in mind that it would be expensive. The latter method is the point-of-use (POU) system. These are basically devices that help you with the final use. That is to say it could be your water purifier in the house, be the shower head with an inbuilt purifier etc. there are ones you can attach to faucets as well. It is all up to you to decide what exactly you need.
Of course no amount of looking for purifiers online by googling buy water filter online is going to help you as stated above if say the reason for your contamination is not figured out. Figuring out what the contamination is exactly could also help you decide on which method you want to use as well. You should call the relevant government authorities if you have any suspicions that you are consuming something that is contaminated. It could turn out that there is no contamination in your area and you don’t any sort of purifier.
However if you have a serious issue it would be better to clean everything that comes into your house rather than only protect certain methods of consumption. So all in all it would be better if you are always on the loo out for it. This would ensure that you stay healthy and it will help you with the best plan to adopt to keep you healthy.