Pure water is the key to human health. But if it contains various chemical elements, bacteria, rust, etc., this water can hardly be considered a source of health and beauty. To get rid of harmful impurities, water needs to be filtered.
Having decided to purchase a household filter, you must decide on its type. The most common water filter is the jug type. The principle of its operation is the transfusion of water from the upper container into the jug through a cartridge with a sorbent. The volume of the jug from different manufacturers is most often from 1 to 2 liters. It is perfect for home or small office.
The water filter in the form of a nozzle on the tap is quite convenient, because does not take up much space. However, its performance is quite small - up to half a liter per minute. The disadvantages of the filter in the form of a nozzle include the need to constantly remove and put it on the tap. Another type of water purifier is a wash filter. It is placed next to the tap and connected to it using a flexible hose.
Stationary filters with the crane for the purified water are very convenient in use. Such a water purifier is built into the water supply, and the filters themselves are installed under the sink, which saves the working space of the sink. The resource and performance of stationary filters is significantly higher than that of water purifiers in the form of nozzles on a tap or jug. Its disadvantages include only high cost.
When buying, be sure to ask if the filter of your choice is certified by the NSF / ANSI laboratory, which assigns them quality standards. Standard 42 indicates that the filter 99% purifies water from chlorine and clouding impurities - rust, sand, etc. Standard 53 is assigned to filters that remove volatile organic compounds and chemicals - pesticides, herbicides, lead, asbestos, mercury, etc. Standard 58 indicates that 99.9% of contaminants are removed by the filter.
The last thing to find out is what materials the filter is made of. Food plastic should have a uniform and uniform color and should not smell. If the design of the water purifier provides for hoses, you should make sure of their strength and flexibility. High-quality and durable water purifiers are made of glass-filled plastic. True, their price is usually higher.
