What is HEPA Filter? Types of HEPA Filter

If you are looking forward to breathing in clean air, you should think about using HEPA Filter. These filters are designed to trap pollutants and harmful particles in the air, and provide you with clean air to breathe in at all times. These filters are effective in trapping dust mites, pet dander, pollen, tobacco smoke and many other harmful elements that can be found in the air.

What is the HEPA Filter?

Before you purchase a HEPA Filter, you need to have a clear understanding of what it is all about. Then you can make the decision to spend your money and buy the best HEPA Filter that is available in the market as well.

The abbreviation HEPA refers to High Efficient Particulate Air. These filters are designed to deliver an excellent operational experience to you at all times by filtering out most of the particles in the air. In fact, a HEPA Filter can remove almost all the particles that are over 0.3 microns. As a result, you don’t need to worry too much about the presence of pollutants in the air that you breathe in. You can get the help of a HEPA filter to remove them and breathe in clean air.

People have been using HEPA Filters for a long period of time. In fact, the evidence is available to show how people used these filters during World War II as well. In fact, a group of Scientists from America developed the HEPA Filter in order to trap radioactive particles that will get released into the air after the drop of the atomic bomb. Check how HEPA filter works.

Types of HEPA Filters

types of HEPA filters

Along with the basic understanding that you have about HEPA Filter, you need to deep dive and explore more about the different types of HEPA Filters. A HEPA filter can help you to trap all the dust particles above 0.3 microns in diameter. In fact, a micron is one out of a million in a meter. You will be able to get extremely positive results with the help of it. Larger particles are trapped by the HEPA Filter in an effective manner as well.

Human hair that you have on your head measures 50 to 150 microns in diameter. As you can see, a HEPA Filter will be able to trap out particles that are one-hundredth of the size of hair that you have on the head. This includes the particles that are given out by vehicles due to fossil fuel burning as well.

A high-quality HEPA Filter available for you to purchase from the market is hygienic when compared to an ordinary filter. That’s because it can provide you with the opportunity to stay away from the health issues that mold spores can create. On the other hand, a HEPA Filter will also be able to help you filter out some of the viruses and bacteria in an effective manner as well. In fact, the HEPA Filter will offer filtering at microscopic scale.

N, R and P type filters

HEPA Filters are widely being used inside respiratory equipment because of the high level of effectiveness offered by it. On the other hand, NIOSH is recognizing HEPA Filter under 9 different grades as well. There are three different resistance levels offered by these filters. They include N, R and P. The N resistance level indicates that the HEPA Filter is resistant to oil. On the other hand, the R and P resistance levels indicate that the HEPA Filter is resistant to oil and oil proof accordingly.

Another classification that is being used to categorize HEPA Filter is based on the five letters of English alphabet, which range from A to E. They are in a position to capture the particles extremely well. Along with that, they will be able to resist the flow of air in an effective manner as well.

Type A to Type E filters

When you take a look at these filters into consideration, you will figure out that the Type A filters are the least effective ones. Likewise, E type HEPA Filters are the most effective. You will be able to find military grade HEPA Filters that come under Type E classification.

Where are HEPA Filters Used?

HEPA Filters are being used in numerous applications around the world. Here is a list of some of the most prominent applications out of them. If you are engaging with one of these applications, you need to think about spending your money to purchase a HEPA Filter and use.

Air filtration

Due to the ability of HEPA Filter to filter air, you will often be able to find them being used in hospitals, surgical rooms and isolation rooms. That’s because the HEPA Filters will make sure that there is no possibility for microbes, viruses or bacteria to come in. The HEPA Filters can keep air purified in these areas and ensure the safety of all staff, patients and visitors. HEPA filters also used consumer roducts like Air Purifier, Vacuum Cleaner and, Air Conditioner.


Incubators that you can find in the hospitals heavily rely on HEPA Filter. These incubators are capable of providing enhanced protection to the newborn babies. They will be able to remain safe from the viruses and bacteria due to the excellent level of protection offered by HEPA Filters.

Warming beds

HEPA Filters are widely used in warming beds as well. These warming beds are in a position to keep the patients warm at all times in the hospitals.
Cleaning supplies

You will be able to find how HEPA Filters are widely used along with the cleaning supplies. Then you will be able to enhance the indoor air quality with ease and make sure that the cleaning supplies are not in a position to contaminate air.

Medical laboratories

People who work in medical laboratories often deal with harmful pathogens. Therefore, it is important for them to be equipped with HEPA Filter as well. At the time of performing tests, they make sure that the pathogens don’t get released into the air.

These are the most prominent applications offered by HEPA Filters.

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