What You Probably Didn't Know About Your Air Filter?

Have you ever wondered how an air filter functions? It sounds easy when you put it like that, but there are many kinds of indoor pollutants, and some of them, volatile organic compounds, don't do the outside world any favors.

Though the air filter is useful, it's not necessary for every family. So let's talk about what an air filter is and why a family that needs one would benefit from it.


How much do you know about air filters?


The air filter was used to purify the air when the air is circulating in your house, it is the screen that is inserted into the compartment of the HVAC system.


The air filter is a kind of aftermarket product, the lifespan of a disposable air filter range from 1 to 6 months, and the washable air filters can be kept for 5 years.


The function of an air filter


What're the air filters used for? The primary air filter was put in to clean the air so you can breathe clean air. In fact, indoor air quality is worse than outdoor air quality, and the same is true for your home. The pollutants can multiply in your house if you don't ventilate and filter properly. 



Air filters are part of the overall HVAC system. They play the role of the first line of defense, protecting components from pollution.


The material of the air filters can directly affect the specific application of the air filter. For example, air filters with carbon can effectively eliminate odors.



Do you know the working principle of air filters?


It is easy for you to find what kind of air filter is suitable for a specific purpose when you are familiar with the working principle of air filters because all the air filters work in the same way.



●  Air goes through the filter screen.

●  The filter media can capture particles such as dust, pet dander, allergens, and dirt. Some other air filters can eliminate viruses and bacteria from the air.


● Pollutants can multiply all the time when the air goes through the filter. Finally, the filters get blocked and the airflow decreased.


● Replace the air filter and continue the process.



Different air filters have different filter media, the size of particles it can trap depends on the quality and quantity of the filter media, the way they capture the particles, and the airflow that goes through the system also can be affected.



The ratings of MERV, airflow restriction, perfect purification, people attach much more importance to the Minimum Efficiency Reporting Value, the MERV rating represents the efficiency the filter purifies the air, it also can affect airflow, which harms the HVAC equipment, your comfort, and energy efficiency.


The range of MERV ratings from 1 to 20, the air filters with a MERV rating of 14 can trap much more particles, but they can restrict the airflow and get blocked quickly.


If it is necessary to buy air filters?


We know that the primary air filters are used to purify the indoor air, so is it necessary for a house with high air quality? Is it useful when the air quality is good? If the furnace air filter can replace the air purifier?


It is essential for us to install the air purifier, not only the air filters can clean up the indoor air, but also they also can protect your HVAC equipment.


Air filters can prevent debris from flowing into the HVAC system


Air filters can be used to prevent debris from flowing into sensitive parts. You will find dirt and dust can accumulate in the air handler and dirt. As time pass by, the debris will multiply and cause much more problems, and pollute the indoor air.


Air Filters Improve the efficiency of air filters and reduce the equipment damage


Nobody wants to pay more money for the heating and cooling in the house, the best way to avoid the high charge is to change your air filters regularly.


HVAC systems can work effectively when there are fewer pollutants and debris. Maybe it is not so good if you don’t have an air filter or your filter is too dirty. Fan motors have to work harder when it happens, which means more electricity will be consumed and your fan motors need to be repaired frequently.


Maybe you also can enjoy the high air quality even if you haven’t installed an air filter. It is better for you to protect the HVAC system in order to keep the normal and effective operation of your HVAC system.


Air Filters improve the quality of the home environment


When you change your air filters, you're improving your quality of life. A new air filter is a fresh start. The installation of a new air filter reduces or eliminates indoor pollutants and contaminants such as Dust, Dander, Mold Spores, Pollen, Chemicals, and Odors. Filters are designed to trap airborne particulates like smoke particles (from tobacco smoke or fireplaces), dust mites, and pet dander as well as pollen and mold spores from plants.



Choose the most suitable air filters for your house


Since every house is different, and each region of your home (living room, bedroom, bathroom) has different levels of dust and toxins, it’s important to choose filters based on those conditions.  Note: All HVAC systems need a good 2-stage cleaning—and preferably a full furnace cleaning twice a year! To ensure that your family enjoys fresh clean air at all times of the year...call Advanced Air Systems.

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