What is mould fogging

Mould fogging, also known as mold fogging, is a method used to treat spaces that are affected by mould growth. It involves using a specialised fogging machine to disperse a fog or mist of an antimicrobial solution or a biocide into the air. The fog contains tiny droplets of the solution, which can reach areas that may be difficult to access through traditional cleaning methods.

The purpose of mould fogging is to effectively treat areas affected by mould growth and control the spread of mould spores and microorganisms.

Here are some specific purposes and benefits of mould fogging:

Mould fogging helps eliminate mould spores, fungi, and other microorganisms present in the air and on surfaces. The fog contains an antimicrobial solution that is designed to target and destroy mould, reducing its presence in the treated area.

Mould spores are microscopic and can easily spread throughout a space, making it challenging to eliminate mould completely. Fogging disperses the antimicrobial solution as a fine mist, allowing it to reach areas that may be difficult to access with traditional cleaning methods. This helps inhibit the growth of mould and prevent it from spreading to unaffected areas.

Mould fogging is often used in conjunction with other mould remediation techniques, such as physical cleaning and moisture control. Fogging can be particularly useful in treating large or hard-to-reach areas, such as crawl spaces, attics, or HVAC systems, where mould growth may be extensive.

Fogging with a ULV Fogger

ULV fogger stands  for Ultra-Low Volume fogger. It is a type of fogging machine commonly used for mould remediation and other pest control applications. ULV foggers are designed to generate a fine mist or fog of small droplets, typically ranging in size from 10 to 50 microns. This fog allows for better dispersion and penetration in the treated area.

The working principle of a ULV fogger involves breaking down a liquid solution into tiny droplets through the use of high-pressure air or by ultrasonic technology.

The fogger's mechanism generates a high-pressure airflow or uses ultrasonic technology to break the liquid solution into extremely small droplets. These droplets are then expelled from the fogger as a mist or fog.

The fog is directed into the targeted area or space affected by mould growth. The small droplets remain suspended in the air for an extended period, allowing them to come into contact with mould spores and other microbial contaminants. The fog penetrates into porous materials, reaching areas that may be difficult to access with traditional cleaning methods.

As the fog settles on surfaces, the antimicrobial solution in the droplets comes into contact with mould spores and microorganisms. The solution works to kill the mould and inhibit its further growth.

What products do you use for Fogging?

We use a biodegradable product, which is a water-based solution that is safe to be fogged into the building environment, including AC ducting. An essential step in the remediation process is the elimination of airborne particulates. This product acts as non-mechanical air scrubbing systems leaving the air quality clean and fresh. The products is:

  • Non-bleaching
  • Non-scented
  • Biodegradable
  • Low/Non-irritant
  • Has proven results

Does Fogging replace source removal?

Fogging is an important technique in the mould remediation process, but it is not a replacement for source removal. While fogging helps in killing mould spores and inhibiting further growth, it does not address the underlying cause of mould infestation. 

Effective mould remediation involves identifying and eliminating the source of moisture that is promoting mould growth, as well as physically removing mould-infested materials whenever possible. Source removal is crucial because if the source of moisture and mould contamination is not addressed, mould growth is likely to recur even after fogging.

Fogging serves as an additional step in the remediation process, providing a way to reach and treat areas that may be difficult to access through conventional cleaning methods. 

It helps in treating airborne mould spores and surface contamination, improving indoor air quality and reducing the risk of mould-related health issues. However, it should be used in conjunction with source removal, proper cleaning, and addressing moisture issues to ensure a thorough and long-lasting mould remediation solution. 


You can trust Mould Cleaning Australia to assist in all the above areas to provide you with a high quality mould removal service. We combine these steps creating a comprehensive approach that tackles both the visible mould and its underlying causes, leading to more effective and sustainable results in mould remediation projects.

Contact Us
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Recent Articles