How does an Air Handling Unit Work?

How does an Air Handling Unit Work

An air handling unit has a multi-stage mechanism and also referred to as air handlers. Before we get into its mechanism and its entire process, let’s understand what exactly is an air handling unit and what are its applications.

What is an Air Handling Unit?

An air handling unit consists of several elements mounted on top of each other, in turn making huge boxes, which are called modules. These modules create necessary ventilation requirements for purifying and cooling the indoor air of a building. These units are generally installed on the roof of the building and the air is circulated through ventilation ducts.

Mechanism of Air Handling Unit

Since air handling units are made up of several elements, let’s acknowledge the application of each of these elements to understand the mechanism of an AHU.

Housing – It is made up of metal but is painted with color to prevent corrosion. It contains all the components of AHU.

Filters – As the name implies, filters are used to extract contaminants from the air. HEPA filters are used when the clients have particular demands. Otherwise, bag filters are used which have very high efficiency in filtering the air. Other types of filters are panel, electrostatic, and carbon filters.

Fan – A fan inside the AHU moves the air to different parts of the building. Since there are various types of fans (backward inclined, backward curved, forward curved, and airfoil), the designer uses special software to check which type of fan is best suitable according to the aesthetics of the building. With the advent of technology, the VAV system has become popular, which can control the volume of the air being discharged. VAV system also follows the greener agenda as it consumes less energy to function smoothly.

Mixing Box – this is a physical location inside the AHU where the air, which returns into the AHU, and the outside air are mixed to create a perfect combination of air that is sent again for air conditioning. Mixing the box aids in recovering heat. Several other elements are also used for recovering heat, such as cross plate heat exchangers and thermal wheel.

Cooling Coil – It is one of the most important parts of the AHU. It is used to dehumidify and cool the air. Depending on which type of AHU system is used, either a chilled liquid cooling coil or a directly expanding cooling coil is used.

Humidifier – During harsh seasons like winters, the air inside the AHU framework and the building as well can become dry, which can be uncomfortable. This is where the humidifier comes into the picture. The mechanism of the humidifier includes the following: steam grid, which is used to heat the water to create steam; steam pan, which is used to heat the water using a heating pan and a spray nozzle that sprays water.

Main functioning – AHU collects air from outside, which is then treated using the filters to remove all the toxic and harmful elements. Then the electromechanical system of fans expels the air into the ducts that distribute the air throughout the building. This air passing inside the duct is cooled using the cooling coil. Silencers are also installed in the AHU to reduce the noise created from the fans and filters.

Types of Air Handling Units

Most commonly, there are 2 types of Air Handling Units – Blow Through and Draw Through. The fan inside a blow-through AHU blows the air using a mixing box, which then passes through the cooling coils and filters before it finally comes out of the ducts into the room. The installation of a draw-through AHU can be either horizontal or vertical. It consists of a fan, which sucks the air inside using the same elements as draw-through AHU before it goes into the ducting network.

AHU is also available in different sizes depending on the requirement of the client. Smaller Air Handling units only contain an air filter , coil and blower .AHUs of larger sizes are also known as Makeup Air Unit (MAU). It is also known as Fresh Air Handling Unit (FAHU) as it does not recirculate the inside air and is 100% dependent on outside air.


The mechanism of an AHU is quiet and its muti-step operations designed as per customer requirement. Different types of AHUs are available in the market that can be classified based on their functioning and size. Depending upon the requirement a proper free consultation with the designengineer can be used to pick the most suitable AHU for the building. Evapoler is the right company you can rely on for your requirements.

Air handling unit manufacturer

Blog Air handling unit manufacturer

Reaching Out To Reliable Air Handling Unit Manufacturer

The demand for air handling units is getting higher with every passing day. There are a number of companies known for providing top quality air handling units as per your specific business space. But, it is important that you research well and always connect with the best and most reliable name in the business.

If you are thinking about how you can find a reliable air handling unit manufacturer, then you have certainly landed yourself on the right page. We are here to help you with the tips and tricks that will ensure that you are connected to one of the best names in the business to have your air handling unit purchased successfully, read along:


At first, it is very crucial for one to check with the background of the respective air handling unit manufacturer. You must always connect with one of the best and most reliable companies and for that, you have to check how long the company has been in the service! So, before making your decision, it is important that you know more about the company and services. The best way to do the same is by checking with the website or social media platforms. It will give you an idea about the existence and prominence of the manufacturers.


Another important aspect that you must check while looking for a reliable company to help you with the best air handling units is going through the reviews. There have been customers who might have provided feedback about the products and services of the respective manufacturers. So, this feedbacks can certainly help you make your decision with a lot more clarity. It is important that you go through the testimonial page and check are they good enough to help you with the best of services.


One of the best ways to understand the company’s intention is by connecting with their support team. You just need to connect with them via call or email and check whether they are responding to you or not. If they are not responding to your or the response is not convincing enough, then you must not take the discussion ahead. It is important for a company to have a reliable support team that can help you anytime you need it.

Final Words

Checking with all these aspects will certainly help you connect with the best of Air handling unit manufacturers. If you are still looking for the same then you must not hesitate and connect with Evapoler now and have your experience more than satisfying. They will always help you with the best of service and products. Give them a call now!

AHU Manufacturer

Blog AHU manufacturer

Leading AHU Manufacturer in India: Providing Superior Air Handling Solutions

Are you looking for an air-handling unit to enhance the cooling system of your business space?

When it comes to ensuring clean, fresh, and well-conditioned air for various commercial, industrial, and institutional spaces, Air Handling Units (AHUs) play a crucial role. One name stands out as a pioneer in manufacturing high-quality AHUs –Evapoler, the leading AHU manufacturer in India.

A Bit More About Air Handling Unit

When it comes to air handling units, these are manufactured in different configurations. You need to select according to your business space and needs. The different configurations are:

  • Vertical type configurations,
  • Floor-mounted type configurations,
  • And Customized configurations.

So, if you connect with the right AHU manufacturer, you will surely get the right product for your needs and exclusively enhance the productivity of your space. But, yes, it is very important that you never compromise with the product quality.

This is why you must make sure to do a quality check of the product and then press the buy button. You can do the same by knowing about the design and raw materials that have been taken into consideration. This will certainly give you clarity about how good the product is and will it be perfect enough for you to have installed in your office space.

Ideal Air Handling Unit

When it comes to the Air handling unit, it is basically manufactured both with or without a thermal break profile. So, you need to let the AHU manufacturers know how you want your 25 mm puff insulated double skin. It can be with and also without the thermal break profile. You can also have AHU units available both in single tier and also in two tiers. So, it completely depends on your business space when it comes to choosing the tier of the product while making a purchase.

Above all, it is very important that you look for a reliable AHU manufacturer and avail the best quality product for yourself as per your specific configuration.

What Makes Evapoler The Right Company?

If you are looking for an exceptional quality air handling unit and that too at very competitive pricing then surely there is none better than Evapoler in the industry. You can always reach out to them and avail top standard products known for durability. So, you can be certain that you will be getting complete value for money service with them.

Customized AHU Solutions

One of the key strengths our is ability to provide customized AHU solutions to meet the specific requirements of different industries. Whether it’s a large-scale industrial facility, a commercial building, or a specialized institution, our team of skilled engineers and designers can create AHUs that perfectly match the needs of the space.

Energy Efficiency and Sustainability

As a responsible AHU manufacturer, we are committed to sustainability and energy efficiency. Our AHUs are designed to optimize energy consumption, thus reducing the overall environmental impact while also providing cost savings to their clients.

Comprehensive Range of AHUs

We offer a comprehensive range of AHUs, catering to various air volume and filtration requirements. From compact and modular AHUs suitable for smaller spaces to large capacity units for vast industrial setups, we have a solution for every need.

Robust and Durable Build

Durability is a hallmark of Evapoler’s AHUs. we utilize premium-grade materials and components that ensure longevity, even in demanding operating conditions. This reliability ensures that our AHUs require minimal maintenance, leading to further cost-effectiveness for their customers.

Compliance with Industry Standards

With a special focus on quality and safety, Evapolar ensures that all AHUs comply with relevant industry standards and regulations. This dedication towards excellence has earned us the trust and recognition of clients across various sectors.

Prompt Customer Support

We take pride in providing excellent customer support. Our team of experienced professionals is readily available to address any queries, offer technical assistance, and provide timely maintenance services.

Partnering for Clean and Healthy Air

By choosing Evapoler as an AHU manufacturer, businesses and institutions in India are making a conscious decision to promote clean and healthy indoor air quality. The well-designed AHUs ensure proper ventilation, temperature control, and humidity regulation, thereby creating a comfortable and productive environment for occupants.

This is why you must not make it late and connect with Evapoler now to enhance the quality of your office air with the assistance of the air handling unit! Contact now!