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How Your HVAC Ductwork Can Make You Sick

You can get cold and allergy-like symptoms from your HVAC system. We spend more than 90% of our time indoors. The pandemic escalated this statistic to an all-time high, making us more vulnerable to indoor air pollution. Poor air quality is detrimental to your health... 

If ductwork is contaminated and unsanitary, you will likely experience these symptoms more often. Spiralite has discovered new ways to minimise and eliminate the bacterial content from indoor ventilating air, decreasing the likelihood of contracting conditions that present unpleasant devitalising symptoms.




Poor Indoor Air Quality

The air in your home and office carries microscopic contaminants. These include nasty bacteria, toxins, dust, pesticides, smoke, mould, mildew and pollen. 

A study by “The International Journal of Epidemiology” found that occupants of office buildings with air conditioning systems consistently reported more cold and flu-like symptoms than their counterparts in naturally ventilated buildings.

Indoor ventilation and the installation of air conditioners are an integral part of the architectural planning process of most modern buildings. However, indoor air quality's driving force depends on clean ductwork



High-quality ductwork is the foundational element of healthy HVAC systems. In addition, the interior lining of the ductwork should ideally be anti-bacterial and must avoid thermal bridging to prevent condensation. These factors are paramount in creating and improving indoor air quality in air-conditioned spaces.

Poor Air Quality Affects You

Being exposed to poor indoor air quality may cause the following cold and flu-like symptoms: Mucous membrane irritation, allergic reactions, breathing difficulties, irritated skin, neurological symptoms such as headache and fatigue. Presenting these symptoms can decrease productivity and general well-being also referred to as sick building syndrome (SBS). These health issues are directly associated with the time spent in air-conditioned buildings with faulty or contaminated ductwork. 

SBS was identified by the WHO as a significant health concern more than 30 years ago. With the Covid-19 pandemic in play, public priorities have shifted towards healthier buildings, especially after schools and offices reopen globally.

Improving Your Indoor Air Quality

The only way to deal with poor indoor air quality is to focus on your HVAC system and ductwork maintenance and quality



Spiralite is the ideal alternative to traditional metal ductwork because it is developed with patented technology that gives the ductwork an anti-bacterial internal lining. This ductwork has a significantly lower toxic impact on your indoor air quality with much lower chemical compounds (Volatile Organic Compounds, CFC/HCFC/HFCs, Low GWP, Zero ODP). Khansaheb industries own this advanced technology. Installation of Spiralite can significantly reduce the number of bacteria ventilating through air-conditioned buildings. Research studies over three years have shown that traditional metal ductwork in air conditioning systems allow 400 times more bacteria to grow when compared to Spiralite.

Furthermore, Spiralite is designed to be highly energy-efficient. Its pre-insulated phenolic insulation is more than 90% closed-cell and non-porous, causing minimal degradation from moisture.

Spiralite is developed with green technology, ensuring a sustainable future and reducing future environmental impact.

No regular maintenance with technicians to prevent bacteria and mould build-up is required when you have installed Spiralite’s ductwork.

To further improve the indoor air quality, it is advised to wash your HVAC filters every 250 hours and change them every three months.


To conclude, it is not your air conditioner making you sick but rather the bacterial build-up in traditional metal ducting systems. Spiralite offers the advanced solution to minimise bacteria ventilating through the air when using an HVAC system. In addition, the technology that developed this ductwork makes it the ideal answer to future high-quality air conditioning.


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