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Donwil Company Blog

In any building, indoor air quality (IAQ) is a key factor in the health, comfort, and well-being of occupants.

As IAQ becomes top of mind, more and more commercial property owners and facility managers are looking for ways to improve the air quality in their buildings.

However, not all IAQ solutions are created equal. Some use outdated technology that can actually make your indoor air quality worse.

As you look to find an IAQ solution for your environment, consider these leading-edge technologies that can take your cooling and comfort to the next level.

4 Types of IAQ Technologies

Active Filtration

IAQ solutions with active filtration systems are some of the most effective ways to improve air quality. These types of systems actively remove contaminants from the air, providing a cleaner and healthier environment for occupants.

How It Works

This type of technology employs an electrical field at the filter to convert a low capture efficiency filter into a high-efficiency one while providing benefits beyond that of a HEPA filter, without the negative side effects of decreased airflow and inflated energy costs.

Bipolar Ionization

 IAQ systems with Bipolar Ionization can be installed in air handling units and small spaces. This technology is particularly effective for contaminants such as bacteria, viruses, and VOCs and can help improve the efficiency of your HVAC system.

How It Works

This system generates energized ions that utilize a building’s HVAC system’s airflow to travel where the solution is needed most to effectively combat contaminants — in the occupied space.


UV cleaning systems are an affordable, effective, and efficient solution to decrease infectious surface and airborne microbes. These devices are often placed in locations where infection control and prevention are needed most, like hospitals and nursing homes. 

How it Works

A widely accepted and long-standing method of sanitization is applied to the mechanical system’s coil to mitigate particulate matter within the duct as it passes through the return, providing clean air at the supply.

Variable Refrigerant Flow (VRF)

 A VRF is a ductless HVAC system that offers a variety of capabilities to meet your needs. This provides significant energy savings over traditional HVAC systems and helps improve IAQ by providing conditioned air directly to occupied spaces.

Whether it’s an outdoor air source unit, a compact water source unit, or a smaller indoor unit, VRF systems can be adapted to any size or type of building.

How It Works

A VRF system uses refrigerant to cool and heat a space. The refrigerant is circulated through an indoor and outdoor unit, providing heating or cooling as needed. The beauty of a VRF system is that it can be tailored to the specific needs of your environment.

Get the IAQ Technologies Guide

Download our free IAQ Technologies Guide to help you with your selection.

Need Help Finding the Perfect IAQ Solution?

At Donwil, we understand the importance of finding an IAQ solution that works the way you need it to. That’s why we take a comprehensive approach to help you solve your indoor air quality and building performance issues.

Get in touch with us to learn more about our diverse product portfolio and how we can help you find the best IAQ solution.

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