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5 Types Of Chemical And Disinfectants Used In Duct Cleaning

April 24, 2023

Air ducts can be a breeding ground for harmful bacteria, viruses and other microorganisms. Over time, dirt and debris accumulate in the ductwork, causing numerous health complications. This is why it is essential to clean the ducts from time to time. There are numerous duct cleaning tools that can be used for this purpose, one of them being cleaning chemicals. In this blog post, different types of chemicals and disinfectants used in duct cleaning will be explored. 


Types Of Duct Cleaning Chemicals


Antimicrobial Pesticide

Antimicrobial pesticides are specifically designed to kill or control the growth of microorganisms such as bacteria, viruses, and fungi. They contain active ingredients that can destroy these harmful organisms by disrupting their metabolic processes or damaging their cell walls.

These types of chemicals are commonly used in duct cleaning services because they can effectively eliminate different types of pathogens present in your air ducts. Antimicrobial pesticides come in various forms like sprays, foams, and foggers that allow them to reach every nook and cranny inside your HVAC system.



Fungicides are chemical substances that kill or inhibit the growth of fungi. Fungi can grow in air ducts and cause health problems like allergies, respiratory infections, and asthma attacks. The use of fungicides in duct cleaning is important to prevent these issues.

They work by disrupting various metabolic processes within the fungal cell. These chemicals can be classified into two groups based on their mode of action: systemic fungicides and contact fungicides. Systemic fungicides penetrate into the plant tissue systemically, while contact fungicides remain on the surface of plants.


Sanitizing is an essential process after using disinfectants because it helps prevent the growth of harmful microorganisms.

Sanitizers work by breaking down cell walls or interfering with cellular metabolism, which ultimately kills the microbes residing in your HVAC system. There are many types of sanitizers available on the market, such as quaternary ammonium compounds, hydrogen peroxide-based products, and chlorine dioxide.

It's crucial to choose a sanitizer that is safe for use in HVAC systems and does not leave any toxic residues behind. The right product should be effective enough to kill germs but gentle enough not to damage surfaces or harm people exposed to them.


Fungistats are chemicals that inhibit the growth of fungi on surfaces. These chemicals prevent the spores from germinating and multiplying, effectively stopping any fungal growth in its tracks. For duct cleaning, fungistats are often used to prevent mould from growing in HVAC systems.


Bacteriostats are chemical agents that inhibit the growth and reproduction of bacteria without killing them. Unlike disinfectants, which destroy microorganisms on contact, bacteriostats only prevent further replication of existing bacteria.

Bacteriostats are commonly used in duct cleaning to control the spread of harmful bacterial colonies. These chemicals work by interfering with the metabolism or cellular processes of bacteria, reducing their ability to proliferate and cause infection.

A prominent provider of duct cleaning tools and supplies, Heat Seal Equipment Ltd. offers duct cleaning vacuums, skipper balls, duct cleaning compressors, insulation removal vacuum bags and more. Our extensive clientele and many years of experience speak to our first-rate service. Learn more about the air handling equipment we offer by calling us today!