All you should know about air purifier
Pollutants, and viruses such as COVID, it is increasingly recommended to ensure quality indoor air. Simply because, because of our activities and our living spaces, we spend nearly 80% of our time in closed places (housing, offices, transport, etc.). Thus, for healthier air, in addition to ventilation, the air purifier is an adequate response. Find out what an air purifier is, how it works, its advantages and how to choose it.
Purifiers can be used in two scenarios:
Preventively, before visible manifestations of poor air quality appear, in particular, respiratory problems (asthma) or the spread of a virus;
In a curative way, when the air is already loaded with polluting elements and it is then necessary to clean up.
In terms of use, it is possible to use the air purifier both in individual homes and in professional spaces, and care establishments, but also for accommodation and training.
The function of an air purifier
In order to carry out its mission, an air purifier will have to filter the air in the space in which it is installed. During this filtration phase, the air can then be purified by the presence of specific filters whose role is to retain the pollutants present. Depending on the model, it will be possible to have more or less efficient and effective equipment.
Here are the different operating steps:
The suction of a volume of air: this first step makes it possible to catch particles and lock them in the purifier.
Filtration of the air sucked in: the air retained passes through various filters, each of which retains some of the polluting particles, knowing that the first filters retain the largest particles and that the last filters retain the most microscopic particles.
Most common pollutants: are viruses, dust, pollen, tobacco smoke, animal dander (cats, dogs, etc.), household products, and food odors.
Return purified air to the treated room.
Whatever the configuration of the premises, it will be necessary to retain one air purifier per room in order to obtain optimized operation. In addition, it will be necessary to regularly clean and/or replace the filters of the device in order to maintain all the filtration power.
The advantage of air purifier
When we know that indoor air can be much more polluted than that which is outside (up to five times more depending on the case), it is easy to understand the interest of having purifiers quality air. And if you are wondering what the real advantages of such devices are, here is a non-exhaustive list:
Elimination of allergenic pollutants;
Reducing the risk of respiratory diseases;
Reduced spread of viruses;
Reduction or even elimination of olfactory discomfort.
The keys to choosing air purifier
room size
The size of the part to be treated is one of the first criteria to be taken into consideration for effective purification.
Indeed, depending on the models on the market, it is possible to treat surfaces ranging from 25 to 120 m².
It is therefore essential to adapt the air purifier to the room that will then have to be treated.
Airflow of air purifier
In practice, it is recommended to provide a filtration capacity of the order of 3 to 4 times the volume of the room over a period of one hour.
This flow rate is indicated in CADR (Clean Air Delivery Rate). The higher the CADR, the better the device.
the level of filtration
The number of filters present on the purifier is another point of attention to have.
Depending on expectations, from improving air quality to effectively preventing pollution in the presence of asthmatics, for example, the choice of filtration level will be important.
the level of noise
Of course, like many devices, an air purifier is not completely silent due to the on-board ventilation system.
In order to guarantee the best possible hearing comfort, it is therefore important to consider the number of decibels emitted during the operation of the device since, for real efficiency, it must be continuously switched on.
To give you an idea, a simple conversation between two people represents around 50 decibels.
Air purifier weight
Remember that, if the objective is to be able to move the air purifier, then care must be taken not to opt for a model that is too heavy.
Finally, depending on the model, it is also possible to benefit from certain interesting options. Here are the main ones:
Filter wear indicator: an indicator light comes on when it becomes necessary to carry out maintenance or replace the filters.
Silent mode: ideal for using the device in a bedroom or office, spaces that require maximum quiet.
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