Different Types of Air Filters Explained




If you desire better indoor air quality, then you require a quality air purifier. Air purifiers reduce the airborne pollutants that aggravate asthma and allergies. As filthy, polluted air flows through the air purifier, clean, fresh air flows into your dwelling. The type of air filter in an air purifier decides how the air purifier works - and how well it functions.


HEPA Filters

HEPA air filters set the standard for air cleaners now. From the 1940s, the U.S. Atomic Energy Commission developed HEPA (High Energy Particulate Air) filters in an attempt to filter radioactive contaminants. To be classified as a HEPA filter, then it must capture no less than 99.97 percent of pollutants in 0.3 microns.


HEPA filter captures particles 25-50 times smaller than the eye can see. The ultra-fine fibers in HEPA filters capture microscopic particles via a mix of diffusion, interception, and inertial impaction. With bigger particles, diffusion occurs when the random motion of these particles causes them to collide with fibers. Interception occurs when bigger particles directly float with a fiber. When a particle's inertia leads to its collision with a fiber, then this is referred to as inertial impaction.


HEGA Filters

You might have also heard of HEGA or High Efficiency Gas Adsorber filters. Specific to Austin Air, HEGA filters must exhibit a minimum efficacy of 99.9 percent, per criteria of the Institute of Environmental Sciences, and utilize "adsorber" filter to filter out chemicals, gases, and odors.


Adsorber filtration combines carbon or carbon carbon/zeolite pellets into a carbon cloth filter to trap gaseous particles. Particular into the HEGA filter, the adsorber filtration method must be designed, built, filled and packed to adhere to these particular standards. The HEGA air filter must also remove irritants like pollen, dust, mold spores, bacteria, and pet dander to be considered a HEGA filter.




The Austin Air Allergy Machine Series include HEGA filtration. Austin Air discovered and developed the new HEGA technology, which entails weaving carbon into a lightweight cloth. The Austin Air Allergy Machine is the perfect air purifier for somebody who wants to remove gases, vapors, and odors in addition to allergens and other particulate matter.


Activated Carbon Filters

Activated carbon filters remove gases, odors, and chemical toxins. Carbon, or activated charcoal, is treated with oxygen to open up the millions of tiny pores between the electrons.


The activated charcoal adsorbs odorous substances from gases or liquids. The expression "adsorbing" refers to the way the pollutants attach to the charcoal by chemical attraction. The large surface area of the activated charcoal gives it thousands of pores for trapping pollutants. As chemicals and pollutants pass the carbon surface, they are instantly attracted and captured inside the filter.


Some carbon filters are treated with additional compounds like potassium iodide or potassium permanganate which boost the carbon filter's ability to catch Volatile Organic Compounds (VOCs) and other chemically reactive gases. Activated carbon filters adsorb a wider spectrum of contaminants.


AllerAir air purifiers utilize an activated carbon filtration system to effectively clean indoor air. AllerAir models include a cylindrical shape for maximum air flow, a powerful four-stage filtration system, and a quiet fan.


Electrostatic Filters

Like Activated Carbon filters, Electrostatic filters bring pollutants. Rather than carbon, Electrostatic filters use electrostatic fees to clean the air. Electrostatic charges are created by pushing air through a maze of static prone fibers. As airborne particles proceed past the static prone fibers, they become drawn to the static charge and are captured inside the filter. The particles remain on collector plates until they are hand washed or removed by a HEPA vacuum cleaner.


By using static electricity, you never need to think about replacing the filters, because most electrostatic air cleaners utilize collection plates to catch pollutants and can be cleaned easily. However, the collection plates have to be cleaned regularly to make sure effective air cleaning. Additionally, unlike HEPA filters, a few electrostatic filters emit ozone, a harmful lung irritant that may trigger asthma and asthma symptoms, as well as other respiratory issues.


Procuring an air cleaner that does not emit any ozone increases the amount of truly clean air in your property. Friedrich air purifiers have the best electrostatic filter in the marketplace and emit minimal amounts of ozone.


Charged Media Filters

Charged media filters additionally use electrostatic energy. Made from synthetic fibers, the media filter is billed through the production process and keeps the fee during its use. This cost attracts airborne particles, providing them an electrostatic charge before trapping them inside the fibers of a traditional filter.


Social media filters present relatively low energy prices and are extremely efficient. However, as the filter becomes soiled, it becomes resistant to the airflow, making it less efficient the more soiled it's. Thus, charged media filters must be changed regularly for peak performance.


Charged media air cleaners have been known for their energy-efficiency and quietness; however, a number of them may emit ozone. Blueair air purifiers use the best charged media filtration, don't emit ozone, and are very quiet and efficient.


Hybrid Air Filtration Systems

The Hybrid air filtration system optimizes its effectiveness through the utilization of numerous technologies. Hybrid air purifiers use a mix of filtration procedures, each filter adding to the overall effective quality of the air purifier. Most powerful air purifiers that a use mixtures of these filters listed above.


Continue Reading Here AC filters

Visit : https://www.amazon.com/gp/product/B004QL75UM/?tag=tabletrepairn-20