No. 1 – Power Equipment And Dimensions Of The Room
To clean the air in a room, you need the power of the equipment to be adequate. To know it, note that for proper cleaning is necessary between 4 and 5 air changes per hour. In some places you will find that 2 are sufficient when renovations, but this will cause the purifier to work at maximum power and the level of noise will increase. Therefore, we recommend you to choose a device that has enough power to clear the air of minimum stay of 2 times at low speed and 4 or 5 times at maximum power.
No. 2 – Filter Efficiency
Another feature that we should not lose sight of is filter’s efficiency. This parameter indicates the percentage of particles that it is able to catch in one renewal. Obviously the larger the number, the more efficient and therefore better equipment.
No. 3 – Power Airflow
No matter how efficient is the filtering system of your device is, if it is not able to make the air through the filter, it is not going to improve the quality as it should. The most important thing in a purifier is that both filtration efficiency and air flow are as high as possible.
No. 4 – Energy Consumption
To know the power expense that we can assume, it is important to know both low power consumption and the highest power. Anyway they are not devices with very high consumption, usually below 100 watts, so it will not be one of the most decisive factors in the choice.
No. 5 – Sound Level
When you are going to use it in a bedroom, you should choose the quieter equipment. As we mentioned above, you have to know the noise level in both low and high operating range. As a guide to low range about 35 decibels is correct and high-ranking usually goes to about 60 decibels.
No. 6 – Replacing the Filters
We are facing the most delicate device, the place where the extracted particles are stored. It is therefore imperative that the filter is of quality and offer the longest possible use. Filter life is a fact that we should know before buying purification equipment to avoid unpleasant surprises. It should also be informed of the price of the filters when you have to change them.
If you have questions or any queries regarding these devices, do not hesitate to ask us and leave a comment below.
An air filter is the device which removes particulate solids like pollen and dirt from air. Air filters find utility where quality of air is of high importance, especially in ventilation systems of buildings and the engines such as those of internal combustion, gas compressors, compressors for air tanks, gas turbines and others.
Buildings, aircrafts and other environments use filters from foam, paper folding, or fiberglass cross. Another method uses fiber or the elements with static electrical charge which attracts particle powder. There are four major types of materials used for mechanical air filters as;
1. Paper
2. Foam
3. Synthetic fibers
4. Cotton
Air filters are found in most systems of forced air flow (air conditioning). The efficiency of air filters in such systems significantly influences the quality of indoor air. Recommended by the construction industry and government guidelines as the standard recommend the use of air filters to meet minimum requirements. In the United States, for example, the United States Department of Energy recommends a Minimum Efficiency Reporting Value, MERV of 13 as stipulated in the test protocol ASHRAE 5.2.2- 1999, and LEED advises builders much as. While the ASHRAE recommends air filters with MERV 6 or higher to control the amounts of pollen, mold and dust reaching wet batteries evaporator systems of air conditioning. Wet batteries are contaminated with high levels of pollen and dust and can promote the growth of mold colonies.
Since the efficiency drops below a certain level of dirt, the filters require maintenance. There are different types of filters available for air conditioning systems. Many of them are cheap but not very efficient. Many filters assembled inside the ducts for air conditioning in buildings are made of glass fiber cross. These filters are inexpensive, disposable, and are available in different densities and sizes. Low density filters allow greater airflow but filter less dirt. On the other hand, the high-density filters withholds particles but allow less air flow and therefore become dirty earlier.
The polyester or fiberglass are frequently used for the manufacture of air filters. Both materials are suitable for temperatures up to 120° C, and its use is common in residential, commercial and industrial applications. Polyester and fiberglass can be mixed with cotton or other fibers to produce a wide range of material characteristics. In some cases, the polypropylene has lower tolerance to high temperatures and is used to improve chemical resistance. Tiny synthetic fibers known as microfibers are used in many types of filters like High Efficiency Particulate Air (HEPA).
