A human can go for more than three weeks without food, but water is a different story. More than half of the body is made up of it and every living cell needs it to keep functioning properly. After three days of not drinking, the body starts to shut down. This is why when they have no access to an uncontaminated supply, they need portable water purifiers for survival.
A large percentage of the lakes, rivers and streams in the world are contaminated, even those that may look clear. Sewage effluent, animal waste, parasitic worms and noxious chemicals are just some of these pollutants. Taking even one drink can be deadly due to various illnesses that can be contracted. This is particularly dangerous when in remote situations where medical help is unavailable.
A number of different methods such as boiling, filtering and use of chemicals are used to deal with bacteria, viruses and other problems. Some of these methods are more effective than others and a combination of methods may be used too. Boiling definitely helps to get rid of viruses, cysts and bacteria. However, toxic chemicals, dirt and bad taste are not removed. Filtering varies considerably in the results obtained, depending on the type of filter used.
When buying a device, it is very important to read any information given about it to see how effective it will be. There are those that not only eliminate viruses, bacteria and protozoa but noxious chemicals and most of the dirt particles and foul taste too. One that offers the most comprehensive contaminant removal is obviously best.
Considering the size and weight of such a unit is also important. Considerable distances may be covered and a unit that is large and difficult to carry is not advisable. Fortunately, there are many compact units on the market today that offer great convenience. The fact that they are compact does not mean that they are unable to produce the necessary gallons of water.
When it comes to surviving in the face of some threat, one has to consider the time it may take to purify. In such a situation one may find it necessary to keep on the move. It may be difficult to stay in one spot for a long period of time.
One needs to make sure that the unit purchased is easy to operate. This is also important in an emergency situation where a unit that is difficult to operate may cause fatal delays. Some are very ease to use and are operated with a manual pump which pushes the water through various filters like ceramic, glass fiber and carbon until it is safe to drink.
These units are widely available, including from many online sources. Making a choice can be difficult but bear in mind that this decision may be a life or death one. Do not compromise on effectiveness for the sake of price. As long as you take all the factors into consideration such as effectiveness, size, weight and ease of use, you can choose a unit you feel does the job properly and suits your budget.
A large percentage of the lakes, rivers and streams in the world are contaminated, even those that may look clear. Sewage effluent, animal waste, parasitic worms and noxious chemicals are just some of these pollutants. Taking even one drink can be deadly due to various illnesses that can be contracted. This is particularly dangerous when in remote situations where medical help is unavailable.
A number of different methods such as boiling, filtering and use of chemicals are used to deal with bacteria, viruses and other problems. Some of these methods are more effective than others and a combination of methods may be used too. Boiling definitely helps to get rid of viruses, cysts and bacteria. However, toxic chemicals, dirt and bad taste are not removed. Filtering varies considerably in the results obtained, depending on the type of filter used.
When buying a device, it is very important to read any information given about it to see how effective it will be. There are those that not only eliminate viruses, bacteria and protozoa but noxious chemicals and most of the dirt particles and foul taste too. One that offers the most comprehensive contaminant removal is obviously best.
Considering the size and weight of such a unit is also important. Considerable distances may be covered and a unit that is large and difficult to carry is not advisable. Fortunately, there are many compact units on the market today that offer great convenience. The fact that they are compact does not mean that they are unable to produce the necessary gallons of water.
When it comes to surviving in the face of some threat, one has to consider the time it may take to purify. In such a situation one may find it necessary to keep on the move. It may be difficult to stay in one spot for a long period of time.
One needs to make sure that the unit purchased is easy to operate. This is also important in an emergency situation where a unit that is difficult to operate may cause fatal delays. Some are very ease to use and are operated with a manual pump which pushes the water through various filters like ceramic, glass fiber and carbon until it is safe to drink.
These units are widely available, including from many online sources. Making a choice can be difficult but bear in mind that this decision may be a life or death one. Do not compromise on effectiveness for the sake of price. As long as you take all the factors into consideration such as effectiveness, size, weight and ease of use, you can choose a unit you feel does the job properly and suits your budget.
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