How to choose a good air purifier

We all want to breathe fresh air and no contaminants in our home, especially people suffering from asthma and allergies. A good air purifier is able to provide benefits in this direction. Learn how to choose a good air purifier.

Are you looking for the best air purifiers for your home or for your office? The Air purifier is a device that can help clean the air from germs, viruses, dust, pollen, mold and many other harmful substances due to allergies, asthma, and several other health damages. However, despite the claims on the product, there is little medical evidence that air purifiers are devices that relieve respiratory symptoms. Some based on ozone, and if not used properly, they may even constitute a threat to health. Read our air purifier buying guide to know how to choose a good air purifier. The will help you choose the most suitable model for your home and your health.

Like any other device, an air purifier possesses characteristics which differ from one model to another. Thus, see the main points to consider before you make the purchase. Let's start.

The filtration system of a good air purifier.

The first aspect that you will evaluate to determine which air purifier will choose is its effective filtering capacity. Each brand offers different filters that are effective.
- The pre-filter is a plastic or wire mesh for retaining the dust balls that may enter the air purifier. This first filtration step reduces the deterioration of the other filters.
- The HEPA or high-efficiency particulate air filter is a conventional mechanical system. Air is forced over to allow and retain particles larger than 0.3 microns. It is mainly used in cases of bacterial diseases, venereal or risk of the spread of pathogens.
- Filtration by ionization is a physicochemical process. It is often without emitting ozone. But the peculiarity of this system is particle properties in the air.
You should know that the particles (pollution) are either neutral or positively charged. Ionization, they change into anions to go rushing to places positively charged. So, is purified.
- The filtered combustion consists in heating the air. The air cleaner burning particles in the latter through a filament or a resistor reaches 200 degrees suspended as spores, fungi, pollen or other bacteria. However, it must not be afraid to have hot air because it is immediately cooled at the exit.
- Plasma Filtration, a process that uses the state of the excited or heated material. In the case of plasma air purifiers, oxygen is excited to generate an oxidizing molecule. It is propelled into the room to clean up the air. Purification is therefore not within the apparatus, but outside, at the time of evacuation. This system is effective to microorganisms such as bacteria and viruses, and volatile organic compounds. This type of air purifier is intended for industrial use because they charge ozone and other free radicals.
- Filtration by photocatalysis which comprises passing air into the nanotubes of titanium dioxide. With ultraviolet rays, the titanium dioxide creates an oxidation of the pollutants transforming them into water vapor and carbon dioxide.

The filter maintenance.

Before buying an air purifier, it is important to know the maintenance required for the type of device. This depends on the filtration system among other things.
Devices equipped with HEPA filters can be washable. Sometimes it is necessary to replace it. If you buy a standard filter, you can easily find the replacement in the market or the Internet.
If filtering is through combustion, ionization or by photocatalysis, details regarding the maintenance of this type of filter are often noted in the instructions of the air purifier. But their maintenance is more common than a HEPA filter.
Most of the manufacturers warn in advance the time to change the filter. Thus, it is easier to predict its replacement.

The noise generated by the turbine.

The noise generated by the rotation of the turbine of the air purifier is an important point. Although all the air purifiers on the market are quite silent, there are models that do not make hardly any noise. If you want to keep your air cleaner turned on during the night, in the bedroom, this will be an important aspect on which you can base your choice. For the same reason, an air cleaner without LED light may be more suitable for the bedroom. According to studies, beyond 50 dB, the machine begins to interfere. For night use, it is good to make sure about the sound level of the device, often marked by the manufacturer.

The price to pay for a good air purifier.

Apart from the models for large offices of major companies and shopping malls, it must still count to spend more than 600 USD. This is usually the range of professional appliances.
The low-end devices below this price should be avoided. To be on the air purifiers market, they often seek to offer products equally attractive but very inefficient.
Regarding non-professional devices, that is to say for home, the only drawback is the filter change intervals during the year. Otherwise, the quality of products and their effectiveness are reasonable compared to the price. These models do not exceed $600. Capacity and air purification volume.
The optimal area.
When planning to buy an air purifier, it is important to know the size of the room where it will be installed. To do this, manufacturers are already putting forward this important detail. Depending on the make and model, the optimal area can range from less than 5 m² to over 150 m². So there are models that are suitable for small rooms but also to larger premises as midsize offices.
The airflow
In the purification process, the apparatus breathes in and out of the air. A good air purifier is distinguished by its ability to renew the air in a room several times per hour. Some models are capable of producing a volume of quite a big air. It varies depending on the need of the user, 100 m3 / h to 500 m 3 / h.
The level of energy consumption.
For a conventional air purifier with a HEPA filter, electricity consumption only relates to the turbine which rotates due to an electric motor. Other more modern models and techniques have a higher level of consumption due to the devices that equip the apparatus (ionizer filament combustion, UV light, etc.). For example, an air purifier in two levels, consumption can be between 3.5 W and 60 W. On a more sophisticated model, there are five levels of filtration. The consumption may increase and reach 90 W continuously. Now, you know how to choose a good air purifier. It is now time to choose one of the best air purifiers on the market. Hope, this air purifier buying guide will help make the right choice. Thank you.