Deciding to buy a home filter, you should decide on its type.The most common water filter - jug.It works by transfusion of water from the top of the container into the jug through the sorbent cartridge.Displacement jug from different manufacturers often from 1 to 2 liters.It is ideal for home or small office.
water filter in the form of the nozzle on the faucet is quite convenient, becauseIt does not take up much space.However, its performance is quite low - up to half a liter per minute.The disadvantages in the form of filter tips can be attributed to the need to constantly remove and put it on tap.Another variation of this water purifier - a filter on the sink.Its put next to the crane and is connected to it by a flexible hose.
Very easy to use stationary filter with a tap for purified water.This purifier is inserted into the water and filters set themselves under the sink that allows you to save the workspace shell.Source and stationary filters performance is significantly higher than that in a water purifier for tap nozzle or jug.Its only disadvantage is the high cost.
When purchasing be sure to ask, whether certified laboratory chosen filter NSF / ANSI, which assigns them to quality standards.Standard 42 indicates that the filter 99 purifies the water% chlorine and opacifying contaminants - rust, sand, etc.Standard 53 is assigned to a filter that removes volatile organic compounds and chemicals - pesticides, herbicides, lead, asbestos, mercury, etc.Standard 58 indicates the removal of the filter 99.9% of contaminants.
The last thing is to find out - what materials made filter.Food plastic must be smooth and uniform in color and should not smell.If the design of the water purifier includes hoses, you should verify their strength and flexibility.High quality and durable water purifiers are made of glass-plastic.However, the price they are usually higher.