Difference Between Filter and Water Purifier

The water filter is commonly used to characterize a variety of water filtration systems, including filters and purifiers Pure Filters. While this term is descriptive and accurate, its meaning varies considerably when it comes to water treatment standards, where there are two main categories of classification for water treatment equipment.

Water Filter (Micro-filtration)

The first category concerns water filters. To comply with this classification, a water treatment system must meet the following criteria: 

Water Purifier

The second category relates to water purifiers. In order to meet this classification, water treatment equipment must meet the following conditions:

Our Water Purifiers

1. All Gravity Systems Pure Filters that contain the cartridges Coldstream FTO+
2. The systems Pure Filters Classic Tap by water pressure 

Microfilters Microfilters: Microfilters are designed to filter out physical particles and relatively large microorganisms such as bacteria and protozoa. They usually work with a pore size that varies between 0.1 and 0.3 micrometers.

Microfilters are effective at removing pathogens such as bacteria (E. coli, Salmonella) and protozoa (Giardia, Cryptosporidium), but they cannot filter viruses because the latter are much smaller. These filters are often used in outdoor or hiking contexts where the primary concern is to filter water from natural sources.

Water Purifiers : Water purifiers go beyond the basic filtration offered by microfilters. They are able to eliminate viruses in addition to bacteria and protozoa. They can use various technologies such as reverse osmosis, distillation, or chemical means (such as chlorine or iodine) to treat water.

Water purifiers are often recommended in situations where water quality is highly compromised, such as in the presence of viruses or chemical contaminants. These systems are typically more complex and can be more expensive than simple microfilters.

In summary, while microfilters are adequate for removing larger contaminants, water purifiers provide more comprehensive protection against a wider range of contaminants, including viruses.

Is the use of a micro-filter sufficient to guarantee drinking water? 

The use of a micro-filter may be sufficient to ensure safe drinking water in some, but not all, conditions. Here are a few things to consider: 

Nature of Contaminants : Micro-filters are very effective at removing bacteria and protozoa from water, making them suitable for treating water from natural sources like lakes, rivers, and streams. However, micro-filters cannot remove viruses, which are much smaller than bacteria and protozoa. In areas where the presence of viruses in the water is a risk, a micro-filter alone will not be enough.

Source Water Quality : If the water comes from a treated municipal system, the presence of viruses is generally less of a concern, and a micro-filter may be sufficient to improve water quality. For water from untreated sources or potentially contaminated with sewage or animal waste, an additional purification method would be required to treat the viruses.

Other Considerations : Micro-filters do not treat chemical contaminants. If the water is contaminated with chemicals, heavy metals, or other pollutants, additional filtration or purification methods will be required. It is important to maintain and clean micro-filters regularly to ensure their effectiveness.

In summary, a micro-filter is sufficient to remove bacteria and protozoa, but not viruses or chemical contaminants. In areas where water is a concern, or if the water is heavily polluted, more comprehensive water purification solutions are recommended.

In what situations would the use of a purifier be more advantageous to ensure optimal water quality ?

The use of a water purifier is most advantageous in the following situations to ensure optimal water quality:

Uncertain or contaminated water quality : In areas where water is highly contaminated or questionable, such as water from natural sources (lakes, rivers, streams) or in areas where water treatment infrastructure is insufficient or damaged. If the water is susceptible to contamination with viruses, a purifier is essential because it can remove viruses, whereas standard filters cannot.

In an emergency or crisis situation : During emergencies such as natural disasters (floods, earthquakes), where the supply of drinking water is disrupted and available water may be contaminated. In camping or hiking areas where access to a reliable source of drinking water is limited.

International travel : Travelling to countries where water quality standards are different or less stringent than in the country of origin, particularly in parts of Africa, Asia and South America.

Extra protection against contaminants : When the water contains specific contaminants that are difficult to remove, such as certain chemicals, heavy metals, or pharmaceutical residues.

Medical needs or fragile health : For people with weakened immune systems, infants, the elderly, or those with specific medical conditions, where drinking contaminated water could have serious consequences.

Preference for high-purity water : For those who want superior water quality for taste, health or for the preparation of specific foods.

In summary, water purifiers are particularly useful and recommended in situations where water quality is highly compromised or uncertain, and where complete removal of contaminants, including viruses, is required.