water filter and water purifier

The Difference Between Water Filter And Purifier

Maybe you went backpacking in an undeveloped country and been advised not to drink on the tap but you forgot to bring enough drinking water. Then, how would you procure clean drinking water in these circumstances?

There are two options: a water purifier or a water filter. But if you ask random people what is the difference between a water filter and water purifier, they might answer, “Those two are the same, aren’t they?”. Well, not really.

Both water filters and water purifiers work on the same principle. They both suck up contaminated water, filter out impurities from protozoa to bacteria and then dispense clean water. However, they differ in only one thing — purifier kills viruses that filters cannot.

A clean drinking water can be accessed as easy as A, B, C but in times of disasters, survival or activities like hiking and camping, or even travelling to countries with few clean water sources, in the wild or populated areas with poor sanitation practices, you need water purifiers or filters to keep you away from possible waterborne illnesses or infections such as diarrheal diseases, cholera, guinea worm disease.

According to Vestergaard.com, there are accounted for 3.4 million deaths per year due to water-related diseases.

If you want to travel the world with enough potable water on your bag or remain hydrated along the way without getting waterborne diseases, you need a water purifier or filter on your backpack. But to give you more detailed information about this technology, we will breakdown all their unique benefits for you.


Water filters, especially the commercially tested ones can definitely kill bacteria, but not all. Filters can only eliminate protozoa and bacteria but can’t get rid of viruses present in the water — viruses are too small for the mesh to catch.

The water filter uses two techniques to remove impurities. Physical filtration is a glorified sieve – maybe a piece of thin gauze or fine textile membrane that strains water to remove larger specks of dirt. While chemical filtration involves a process that allows water to pass through an active material that eliminates impurities.

4 Types of Water Filters  

  1. Activated Carbon – most common household water filters use active carbon granules based on Charcoal. Charcoals have the ability to trap chemical impurities through a process called adsorption.
  2. Reverse Osmosis – forces dirty water to pass through a membrane at pressure. The water passes through and contaminants separated.
  3. Distillation – simplest way to purify water is to boil it. Tough it kills bacteria, it doesn’t eliminate chemicals and other contaminants.
  4. On Balance – most water filtration process involves killing bacteria but do not totally remove contaminants. Combining at least two among these will bring better results.

In distant provinces, where human traffic is relatively low, protozoa like (cryptosporidium, and giardia) and bacteria (E. coli and salmonella) are main threats so give yourself protection by bringing a water filter with you.


The water purification procedure reduces the concentration of contaminants such as suspended parasites, bacteria, algae, fungi, and viruses.

Many communities with few sources of drinking water rely on natural bodies of water as intake sources of water purification for everyday use. These resources commonly include aquifers, creeks, streams, rivers, and lakes. With the recent advances of technology, oceans and salt waters are seen to also be alternative sources of potable water.

According to radiantlifecatalog.com, a water purifier removes 90%-95% of all contaminants in water.

If you are a traveler and you want to explore less-developed cities or towns, where water treatment and sanitation infrastructure is poor or people do not practice good hygiene near water reservoirs, the water purifier is a safe option. By this, you can avoid viruses like Norovirus or hepatitis A.

Look for water filters and purifiers that work with the best quality. Megafresh can provide you safe and clean drinking water for your next intense trips and adventures in the wild.

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