Why My Dyson Air Purifier Smells Bad: A Guide to Better Air

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Written By Jamila W.

Dyson air purifiers eradicate 99.95% of harmful pollutants in a confined space while simultaneously producing 290 liters of high-quality air per second.

Some of Dyson’s best air purifiers come with a HEPA filter and three sensors which is an incredible investment for healthy living homes. With cutting-edge technology, clean air is no longer unattainable for many. Known as the air multiplier innovation, it is a massive step towards reforming air quality in suburban homes. 

Why My Dyson Air Purifier Smells Bad

Despite Dyson’s commitment to clean air, foul odors are inevitable. No matter the circumstance, an air purifier is bound to smell if proper maintenance is not in place. From a musty odor to a chlorine-packed smell, the possibilities are endless. Hence, Dyson air purifier owners must take precautions and incorporate preventative measures before it gets out of hand. 

Here are some key reasons why your Dyson air purifier smells bad:

Brand New Condition

For newly bought appliances, Dyson air purifiers can initially smell like plastic. In some cases, a sweet smell might accompany the plastic one due to the carbon filter in the air purifier. This is an excellent sign that your carbon filter is working. Depending on how long you have had your air purifier, it is vital to note that this smell is not intense. It is a temporary occurrence that lasts only for the first few uses.


One key point is that all electrical devices are prone to overheating. Overheating usually happens when the air filter is not regularly cleaned and maintained. This makes the air purifier work twice as hard to get the same amount of work done. When that happens, the internal temperature of the product rises. Unlike a brand new Dyson air purifier, the burning smell emitted from a burning component is much more pungent. It can sometimes smell like burnt plastic or parts that need attention. Depending on the rate of damage, the smell can vary in intensity. No matter the type of appliance, they all bear the same weakness: the inability to manage high temperatures.

Ozone Emission

When you smell the chlorine from your Dyson air cleaner, there is a high chance the catalytic filter in your device emanates ozone. Like the smell upon exiting a pool or after a thunderstorm, ozone is a harmful pollutant and a lung irritant. It is often a byproduct of most air cleaners and causes a slew of breathing issues, such as shortness of breath and coughing. 

Mold & Bacteria

In particularly humid places, mold and bacteria are a natural occurrence in filters. This smell usually resembles a wet dog with a putrid pungent. Due to the moisture build-up in the filters from cleaning or humid weather, mold and bacteria can freely grow. It can soon be a hotbed for bacterial growth for homeowners that do not regularly change their Dyson air purifier filters. Bacterial growth can rapidly infest the HVAC (heating & cooling system) if swift action is not taken. 

Poor Ventilation

Contrary to popular belief, poor ventilation can be a leading cause of bad-smelling Dyson air purifiers. These smells come in a variety that can range from tobacco to paint. These particles are trapped in the filters in areas with abundant odors. Depending on the type of filter, the smell can vary in intensity. However, the most problematic ones are activated charcoal filters that trap odor particles. 

Full or Clogged Filters

One of the most important ways to keep a Dyson air purifier clean is by changing the filters regularly. A HEPA or any average filter must be frequently maintained as a critical component in trapping dust. When preventative measures are not taken, an intense dusty smell is emitted due to the clogged filter filled with dander and dust. Occasionally, a larger particle might get stuck in the filter and emanate a similar smell. 

How To Get Rid Of Bad Smells

The only way to maximize your Dyson air purifier is to work at full capacity. For that to happen, measures have to be taken. This includes many solutions that involve the homeowners’ proactive actions.

These are the 3 leading solutions to better and breathable air at home:

Clean Your Filter

Most Dyson air purifiers come with a washable filter. To begin, the best way is to create a routine. Schedule specific dates to set time aside in advance. This ensures you are making time to clean your filter regularly. Simply remove the filters from the air purifier for a quick wash before putting it back in. 

Replace Your Filter

Depending on the condition of your filter, replacing it might be necessary if your air purifier doesn’t have washable filters or has mold. This step is slightly trickier than just cleaning your filter. Thus, it is recommended to engage an HVAC technician to help you out and still keep your Dyson air purifier intact.

Increase Airflow

For special cases revolving around poor air quality, there are two possible solutions: move your Dyson air cleaner to a different room or open your windows. If you live in a confined space renowned for foul odors, increasing airflow into your area is the only way to combat it.

In Summary

Possessing a Dyson air purifier automates air cleaning to a large extent with its unique algorithm and 360-degree fan. Yet, it is not a foolproof plan that automatically eliminates pungent smells. As a homeowner, it is crucial to play your part by conducting preventative measures such as cleaning and replacing filters and increasing airflow at home. This keeps recurring bad smells to a minimum as you enjoy better and breathable air in the comfort of your home. 

Get on the bandwagon to Influenza free air in your home with a Dyson air cleaner today!