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How does an air purifier work?
by Stan K. Dr. The air purifier is a device that sucks air in a room with the help of fans in the interior of the device. The larger the fan, the slower the rotation speed. A low rotation speed has a positive influence on the noise and can carry a large amount of air into the air cleaner. The room air is cleaned by several filters and returns as pure air back into the premises. Each filter fulfills a specific purpose by purifying the air of certain pollutants. Most air purifiers work with mechanical filters.How does an air purifier work exactly?
How does an air purifier work? High-quality models offer additional cleaning measures by ionizing the air or generating ozone. The good functioning of an air purifier depends on the performance and the quality of the respective filter systems. There are different types of filters that filter different pollutants from the air. Since a single filter is usually not sufficient to effectively purify the air from all pollutants, most manufacturers integrate several filters into their air purifiers. These each filter a specific type of pollutant.
The basic equipment of the air cleaner: the pre-filter
The pre-filter is usually the first filter in an air purifier and consists of a simple flow or a grid. The active principle is similar to a sieve. Coarse impurities are already trapped by the pre-filter and do not get into the air purifier. The particles that get stuck in this filter include hair, dust flakes, and small insects.
Pre-filters are usually permanent filters, are permanently installed and do not need to be replaced. However, the pre-filter must be regularly sucked off and washed out, so that not too many dirt particles get caught in the filter and block it.
Highly efficient filter technology
HEPA filters are often used as filters for an air purifier and consist of filter fibers with a different thickness. These filters work by blocking, inertial and diffusion effects and take even the smallest particles and viruses and bacteria that are in the air. Depending on the particular filter class, HEPA filters can separate between 99.95 and 99.995 percent of all particles in sizes between 0.1 and 0.3 microns.
A highly porous carbon like the activated carbon forms the basis of the activated carbon filter. Similar to a sponge, the pores have different sizes and are interconnected. They form with their structure a large inner surface and thereby capture the smallest dirt.
Ionizers increase the cleaning effect
The function of the activated carbon filter is the adsorption of particles and gases and is based on the catalytic ability of carbon in the degradation of certain substances. An activated charcoal filter must be replaced regularly to ensure filter performance. The photocatalyst is used to neutralize bacteria and viruses. The effect of this filter is ensured by the photocatalytic effect.
Due to their high reactivity, they split organic material. The resulting decomposition products are stable organic. Depending on the air filter and the price range of the model, several filters are combined. In addition to the classic filters, ionizers and photocatalysts working with UV light can additionally increase the cleaning effect.
What are the advantages of air purifiers?
Air purifiers are able to filter more than 99 percent of all airborne particles out of the air. The indoor climate is thereby significantly improved. Numerous consumers use the cleaner, for example, in the nursery, to provide babies and toddlers as pure air as possible. The devices of renowned manufacturers are characterized by a high filtering power and can also destroy mold spores in the air.
However, care must be taken during use that the selected device is pure air purifying and not moisturizing. Mold forms above all in rooms with high humidity.
Buy Air Purifier - What needs to be considered?
Before making an air purifier purchase decision, some important points should be clarified. In order to maintain the functionality of the device, it must be regularly cleaned and maintained. With daily use, dirt particles accumulate in the water.
Therefore, the water tank should be rinsed thoroughly before it is filled with fresh water. In addition, there must always be enough water in the water tank to ensure the cleaning function.
High-quality appliances are equipped with dry run protection and a low water level is displayed in time. At least every six months, the equipment must be thoroughly cleaned. It is advisable to use a hygiene product with which the formation of bacteria and germs in the wastewater is counteracted.
Electricity consumption is an important purchasing criterion
One of the important criteria is the power consumption of a device. Some models cause high electricity costs when used regularly, especially if they are in operation for many hours a day. Well-equipped air purifiers have a sensor or a timer.
This feature automatically turns the unit on or off when some degree of air purge is achieved or the preset run time is over. Most devices are equipped with different ventilation levels. Good air cleaners are characterized by their high particle filtration.
These values are given in micron units. The smaller the Micron value, the higher the filtering. Most air purifiers have a filtering power of 0.5 microns, while high-quality equipment also has cleaning values of 0.3 microns.
Air purifiers are also suitable for large rooms
Even large rooms can be easily cleaned with an air cleaner of polluted air. However, conventional air cleaners only filter the air in rooms that are well below 50 square meters. In addition, many devices work with ionizers that generate ozone and thus provide fresh air.
Anyone allergic to this gas should choose a device with a high cleaning performance without ozone emissions. The pure acquisition costs are regular amounts, which must be calculated for maintenance and accessories.
Regular filter replacement extends the shelf life
Every 6 to 12 months, the filter must be replaced so that the cleaning power is maintained. The exact cost of a filter varies from manufacturer to manufacturer and averages 25 to 50 euros. Alternatively, there are air cleaners with lifelong filters that are easy to clean with water.
If you also use the device at night, you should prefer a model that operates as quietly as possible. If the air in the bedroom is filtered for several hours during the day, the nightly use is usually not necessary.
Summary and conclusion
The air purifier is a practical and compact device that filters contaminated air within a short time. The reliable cleaners are suitable for use in all living spaces and can also be used in the hobby cellar, the garage or at the workplace, where they provide clean air.
A variety of different models are offered by numerous manufacturers and is characterized by their reliable filter performance, their ease of use and the choice of different levels of ventilation. Depending on your personal needs, you can always buy the right air purifier.
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About Stan K. 
Dr.
0 connections, 0 recommendations, 12 honor points.Joined APSense since, May 28th, 2019, From Los Angeles, United States.
Created on May 29th 2019 03:18. Viewed 3,475 times.
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