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How does an air purifier work?

How does an air purifier work?

How does an air purifier work? complete guide

Did you know that the air quality inside the rooms in which we live (our houses, our workplace, transport) is up to 5 to 10 times more polluted than the outside air?

And since we spend around 80% of our time there, that represents many unwanted products inhaled against our will.

They are VOCs (volatile organic compounds), allergens, cigarette smoke, humidity, pollutants linked to household products, insecticides, and pesticides. Our living spaces need a tremendous ventilation blow.

So yes, we breathe very polluted air, but this is not inevitable!

Of course, we can never recommend enough to open your windows for at least 10 minutes every day but know that at the technological level, innovative brands have created air purifiers capable of transforming the low-quality air that we breathe in clean air, devoid of any pollutant.

Would you like to invest in an air purifier but still have questions about this funny device? Would you like to know how an air purifier works and how it could change your life?

In this article, we explain how an air purifier works, as well as its benefits for you and your family.

How the air purifier works

The air purifier is a device that sucks polluted air from a room and rejects it pure, devoid of all pollutants and harmful materials contained in it. There are several air purification processes, all with relevant efficiencies.

1. Filtration

With this technique, the air passes through several filters, each of which represents a step in the air purification process. There are several kinds, each with a different degree of effectiveness:

  • The pre-filter, which, as its name suggests, is often the first barrier in the air path. This filter removes many residues in the air, such as hair, animal hair, coarse dust, etc. Generally, its mesh is in more or less tight fabric, but it can just as well be found in a metal grid. Let’s say that its summary filtration allows other filters, more precisely, not to wear out too quickly.

Say goodbye to allergens (dander and pollen) and cigarette smoke. § The HEPA filter (for High-Efficiency Particulate Air) is one of the most widespread in the manufacture of air purifiers, in particular thanks to the efficiency of its mesh. Initially designed for the medical sector, its weaving is up to 100 times tighter than a traditional filter, which allows it to block a good number of fine particles (which are often measured in microns: one micrometer = one-thousandth of a meter). However, it does not retain chemical pollutants or viruses. But with an efficiency rate of almost 100%, HEPA filters are among the most formidable around. Count on a replacement every 6 to 18 months for optimal efficiency and extended filter life.

  • The activated carbon filter: depending on the different types of air purifiers, this filter is found in the form of beads or powder. 
  • Note that this filter has little resistance to humidity and that its service life depends directly on its absorption capacity.

The more the air purifier has a powerful filtration system and decomposes with the help of different filters, the more the outgoing ambient air will be pure and beneficial for your health.

how does air purifier work

2. Ionization

Among the quietest devices available, ionization purifiers are another way to purify the air in your home. We know that the particles in suspension are made of positive ions and that the ionizer purifier generates negative ions.

This confrontation of the elements destroys these fine particles, which fall to the ground or settle on your furniture.

We then accomplish 50% of the work because it will be necessary to eliminate them for good, either by vacuuming your surfaces or with a microfiber wipe to dust your furniture.

Also, note that some very innovative models have a filter designed for this purpose, so you won’t even have to lift a finger; great.

Why is it such a great process? Because by emitting between 3 and 8 million negative ions per second, the CADR (Clean Air Delivery Rate) allows ultra-efficient room air purification, where you are rid of all types of polluting particles In no time.

3. Photocatalysis

The emission of ultraviolet light carries out purification by photocatalysis by the device, which will dissolve and therefore destroy the polluting particles via a catalyst, often titanium dioxide.

How does it work? It is straightforward! Using an internal fan, the purifier attracts these harmful particles. It thus gets rid of mold, VOCs, allergens such as dust mites, dander, pollen, chemical pollutant residues, bacteria, and even viruses! These particles then become harmless.

If you pair your photocatalytic purifier with a dehumidifier, you probably have the best combo for healthy air, which is highly recommended for people with respiratory illnesses.

However, to operate, this type of device requires a large volume of circulated air. It usually results in more noise than with any other type of purifier.

The air purifier, a device that is both stationary and mobile and very ergonomic

Depending on your preferences, you have the choice between a stationary and a mobile purifier. The fixed purifier is installed at the top of a wall, and you are free to assemble it yourself or call a professional.

For a mobile purifier, know that these are ergonomic, and the brands compete in ingenuity to make their use as easy and intuitive as possible.

Much lighter, these mobile purifiers are very quiet and can be installed in any room and in a living room to filter and clean the ambient air, as in a bathroom to avoid any mold problem, that in a bedroom to promote safe and pure sleep.

We always recommend placing your purifier in the center of the room and not in a nook. It is much more efficient when the airflow comes from all sides, without obstacles.

Maintaining an air purifier.

Proper maintenance of your purifier will considerably increase its lifespan.

The main thing to do is to change the filters when necessary. Unchanged filters can lead to overconsumption of energy in the device and less efficiency in dealing with air pollution.

how does an air purifier work

Do not hesitate to rely on the manufacturer’s recommendations because each model is different. New filters can be found very easily in stores or on the internet.

Maintenance is more regular for ion and catalyst purifiers, mainly because purifying technologies are more demanding in terms of cleanliness. It all depends on which device you prefer.

How to increase the efficiency of an air purifier?

An air purifier is good, but it’s the best for healthy indoor air free of any polluting particles when combined with other devices. For example, we recommend that you vacuum regularly in your living spaces.

It’s even better when equipped with HEPA filtration, which will suck particles out of the air, not disperse them in the air.

If you have mold problems, pairing the purifier with a dehumidifier is a great idea!

What is the price of an air purifier?

Prices vary widely, and it all depends on why you want to invest in an air purifier.

Filters, ions, catalysts, etc. Purifying technology has an immediate impact on the price.

The more complex and quality the technology, the higher its price. Then, it is the brand itself that will increase/decrease the purchase price.

Brands like Dyson, Rowenta, Philips, Levoit are at the forefront of innovation, and their reputation is well established.

Their products are of high quality, and you are afraid you will be disappointed. Finally, the size of the device and the treated area are the last important factor for the selling price.

Typically, prices start from $ 100 for entry-level products to over $ 800 for high-performance 2-in-1 purifiers.

If you are in the market for a cleaner, our buying guide can help you in your quest for the perfect sanitizer for your living spaces!

The air purifier, what to remember:

  • A purifier has different operating modes:
  • by filtration;
  • by ion diffusion;
  • by photocatalysis;
  • Its maintenance is essential to ensure good longevity and efficiency of purification of the ambient air.
  • The price depends on the brand, the purifying technology, size, and the treatment area.