Why Your Go-To Home Fragrance Trick Might Not Be As Harmless As It Smells

Many people in the United States use home-scenting products such as candles, essential oil diffusers, incense, and air fresheners to create a relaxing environment in their homes, especially after coming from work on a cold day.


The scents of these products have been associated with feelings of relaxation, hygiene, and even emotional health. Thus, these scents have become a significant part of daily life.


Despite these scented products being intended to enhance the ambiance of a home, experts have revealed that the interaction of these products with the air in the home is not as simple as most people think. The smell in the air does not necessarily mean that everything is okay.

What research says about indoor air

Indoor air quality has become a significant aspect in recent times, especially with people spending a lot of time in their homes.

According to the United States Environmental Protection Agency, indoor air quality can sometimes be worse than outdoor air quality due to the accumulation of chemicals in the air from different products.

The use of fragrance-based products is one of the causes of indoor air quality issues, as they release volatile organic compounds, commonly referred to as VOCs, which can mix with other chemicals in indoor air, leading to further pollutants in the air, which are not necessarily visible or cannot be identified by their odor.

According to studies cited by the EPA, fresh or clean-smelling products have been identified as having a negative effect on indoor air quality, especially when they are used in a closed environment with no proper ventilation.

The hidden chemistry behind pleasant scents

The science behind home fragrances reveals that the smell is made up of chemicals that evaporate in the air. While the chemicals are not considered dangerous on an individual basis, the cumulative effect is what raises concern.

According to studies published in the journal Environmental Science and Technology, the interaction between the product used for home fragrance and the existing ozone in the air can result in the formation of another compound known as formaldehyde, which is known to irritate the skin. The interaction does not always result in an obvious smell, which means that people are not aware when the air quality is compromised.

As revealed in the findings on air quality, the concern is not the product but the potential reaction that occurs when the product is used, especially in homes where there is no ventilation.

Why the smell can be misleading

One of the major challenges associated with fragrance-based products is that sometimes the smell does not necessarily relate to safety. A house may smell good but have particles in the air that could have a negative health effect over time.

As per studies cited by the EPA, it is seen that humans have a tendency to associate good smells or strong smells with cleanliness. However, this may not necessarily remove the pollutants but may even add to them in some cases. This is a situation where a person may feel safe due to the fragrance but may not be aware of the actual condition of the air.

Health concerns and sensitivity

For some, the use of scented products on an occasional basis might not have a significant impact. However, for those suffering from asthma, allergies, or respiratory problems, the impact can sometimes be felt immediately.

According to the American Lung Association, exposure to certain chemicals in the air can cause symptoms such as headaches, dizziness, and irritation in the eyes or throat. The impact of these symptoms can vary from person to person, depending on the level of exposure.

However, the need to understand the impact of such products on the space can be emphasized. At times, exposure to such harmless products over a period of time in a closed environment can cause discomfort.

Simple changes that can help

Experts recommend that, in order to improve indoor air quality, one does not have to completely stop using fragrance products, but they have to be utilized wisely. This can be done by allowing more ventilation, such as opening windows, using an exhaust fan, or allowing fresh air to pass through. This will help reduce indoor air pollutants.

Using products with fewer synthetic ingredients or opting for natural alternatives, such as using them in moderation, will also help to reduce indoor air pollutants. Furthermore, making use of non-fragrance methods, such as cleaning and ventilation, will also improve the smell of a house without adding more chemicals to the air.

As indoor air research continues to progress, awareness is replacing avoidance, allowing people to make their own choices.

A closer look at everyday habits

The increasing focus on indoor air quality is an indication that small daily behaviors have a greater influence than is thought. While home fragrance products are not considered to be harmful, their use is dependent on the application and environment of use.

By knowing the science behind these products, it is possible to understand why a product that smells good does not necessarily mean that it is good for indoor air quality.

For most homes, the concern is not about removing these scents but finding a good balance between being aware of them and ensuring that the air feels as good as it smells.