Air filters for ventilation: a description of the elements

Modern apartments are mainly used technological system of air exchange, which allow for an effective flow. However, the inward flow must be cleaned of dust particles, so that people in the room can breathe comfortably. That is why the main element of such a system are air filters for ventilation.

Product Classification

To understand the assortment of such products, it is necessary to become familiar with the basic ways of systematization, that is, to understand which categories can be divided into cleaning devices of this type. The right choice of a dust removal system will help save money, because the price of equipment is quite high (see also the article Ventilation of sewage in private homes).

Depending on the application

Air purification filters can be used not only in residential premises, but also in food factories, in medical institutions and production workshops, where increased demands are made on the effectiveness of the retention of dust particles.

In this regard, there is a need for their classification by operational capabilities.

• Coarse products are used if the requirements for air cleanliness are not too high. Designed to reduce air dust in normal conditions. Very often they are the first obstacle directly in front of more efficient analogues.
• Fine products are used to protect against fine dust. They usually act as a second barrier to air masses. If before them not to install devices for a delay of large particles, then their service life considerably will decrease.
• Ultrafine cleaning devices are used to maintain optimal conditions in rooms with high air requirements. For example, they are actively used in the pharmaceutical industry, various laboratories and many other institutions.

Note! Air filters for ventilation systems of the latter type can perform absolute and final cleaning of streams. The latter option is needed only for buildings with the highest requirements for air quality.

Based on the design features

In addition to the field of application, the classification of cleaning devices is taken into account, because they can perform their task in different ways. In addition, their appearance may vary significantly.

The following are the main types of cleaning devices.

• Rolled filters are used to clean the supply medium in various rooms and systems. The element that retains dust, often made of high quality polyester. The thickness of the rolls may vary significantly.
• Self-cleaning devices are intended primarily for use with habitable and abrasive-jet chambers, as well as complex installations.. The main function is the aspiration and ventilation of polluted air.
• Cellular counterparts were produced for the purification of atmospheric flows in air conditioning systems. The filter material is a vinyl mesh with perforation and corrugation. As a rule, 12 such elements are installed inside.
• Panel products are a frame structure made of stainless steel.. At the outlet, a special mesh is installed that prevents the cleaning material from falling out. Additional fixation is carried out using metal rods.
• Electrical appliances usually consist of two compartments.. In the first of them, dust particles are charged under the action of a force that is formed during the collision of ions. In another sector, particles are deposited on plate electrodes. Trapped dust is removed by rinsing.

Note! Modern production of air filters for ventilation is carried out taking into account the items of documentation GOST 30528-97. It also provides information on the classification of the device.

Recommendations for installation and operation

• Air purifying products must be inside the main equipment and be protected from external factors - precipitation, frost, and so on.
• The coarse filters should be located directly in front of the fan, and the fine devices - in front of the heat exchanger.
• If the flow is directed upwards, then load-bearing suspensions should be provided so that the pockets are pulled out.
• During operation, pressure surges should be checked using measuring devices.
• In the presence of fine cleaning elements, it is mandatory to install pre-dusting structures.
• Products must be isolated from equipment such as electric heaters and heat exchangers.
• In the guide slide, it is advisable to install only devices that carry out coarse air cleaning.
• If two or more elements are being mounted, then special seals are placed at the points of contact.
• The arrangement of the device for air purification after the heat exchanger is quite acceptable if the decision is dictated by the technological conditions.

Final part

Above, the introductory information was presented so that every consumer could understand what an air-vent filter is. These recommendations should help to install a cleaning device directly with your own hands, refusing to attract professional assistance (see also the article Ventilation ducts and air ducts in apartments and residential buildings).

If for some reason this instruction was not fully understood, you can always watch the video in this article for the final mastering of the topic.