Most experts recommend to go through household water filter reviews before buying one. However, at times this step may not give the best information especially about the contaminant removal, filter life or price.

One of the most common questions that people face while buying a water filter is whether to buy a purifier for $300, when you can get one for around $125. The best consumer's guide while selecting an effective home purifier is to look for certifications and product performance data. Usually, the systems that are certified by the National Sanitation Foundation (NSF) are considered best. This organization is known to verify the claimed contaminant reduction capability of the filter. The water purification system that are certified by reputed labs like the Underwriter's Laboratory can also be trusted.

Lastly, the certification by the California Department of Public Health is considered to be the best among all. Since, it is the most stringent water filtration testing in all of the States. Mostly, certified systems also list the the contaminants that the filter will remove and the amount of reduction.

It is important to note that not all contaminants can be removed by the normal household water filter. The set level which the filter can reduce are established by the EPA. According to the established rules, when the public treatment facilities report a level that is higher than the FAL, they are required to solve the problem, although this requirement is not actively enforced.

If an individual consumes small amounts of lead over a period of time, it could pose serious health risks. Studies show that lead is particularly dangerous for pregnant women and children. Therefore, it is important to install a good quality household water filter in your home. Finally, you are doing a favor on yourself and the environment, by filtering all the containment of the water that comes into your home.