The smell of cumin sizzling in hot oil. Fresh rotis cooking on the tawa. Masala chai simmering on the hob. Incense burning during prayer.
For millions of South Asian families, these are not simply smells. They are memories. They are culture. They are family. They are home.
But there is something else in the air that we rarely think about.
Pollution.
We spend a huge proportion of our lives inside our homes, yet when we talk about air pollution, our minds usually turn to traffic fumes, factories and pollution outdoors. But what if some of the pollution we breathe every day is being created inside our own homes?
This is not about blaming our food, our culture or our traditions. It is about understanding what happens to the air around us and making a few simple changes that could help make our homes healthier.
Your kitchen may be one of the most polluted rooms in your home
South Asian cooking is wonderfully diverse, but many of our favourite cooking methods can generate airborne particles and other pollutants. Frying, deep frying, roasting, grilling and cooking with very hot oils can all affect indoor air quality.
And then there is the gas hob. Gas cooking can produce pollutants such as nitrogen dioxide, which can accumulate when ventilation is poor.
Think about a typical kitchen. A pan of oil is heating, the extractor is not switched on, the windows are closed because it is cold outside, the kitchen door is open and the family is sitting in the adjoining room. Within minutes, pollutants generated in the kitchen can spread into the rest of the home.
You may not be able to see them, but you can still be breathing them.
That is why ventilation matters. Use your extractor fan whenever you cook, ideally one that vents outdoors. Open a window where practical and avoid unnecessarily overheating oil or allowing food to burn. These are small changes, but they can reduce the amount of pollution building up indoors.
What about the incense burning during prayer?
This is where the conversation becomes particularly important for South Asian households. Incense has deep cultural and religious significance for many families. It can mark prayer, celebration, remembrance and important occasions.
But burning incense also produces smoke and fine particles. In a small room with closed windows and limited ventilation, those particles can accumulate.
The message is not to stop burning incense. It is to think about the air around you when you burn it. Use less where possible, avoid burning incense continuously in enclosed rooms, and allow fresh air to circulate and ventilate the space afterwards.
We should not have to choose between our traditions and our health. We can respect both.
Your cleaning cupboard could be adding to the problem
There is another source of indoor pollution hiding in many homes: cleaning products.
Disinfectant sprays, aerosol products, air fresheners and strongly fragranced cleaners can release chemicals into the air. There is also a simple misconception worth challenging: more cleaning product does not mean a cleaner home.
Follow the instructions on the label, use only what you need and ventilate rooms while cleaning. And never mix cleaning products unless the manufacturer specifically says it is safe. Some combinations can release hazardous gases.
The biggest problem may simply be that we do not let our homes breathe
Modern homes are increasingly well sealed to keep heat in and energy bills down. That is good for energy efficiency, but without adequate ventilation, pollutants and moisture can become trapped inside.
Now add everything together: cooking, cleaning, showering, drying clothes, incense, heating, closed windows and poorly maintained extractor fans.
One activity might not seem significant. But several sources operating throughout the day, inside a poorly ventilated home, can create a very different picture.
The air inside your home can become a cocktail of pollutants that you cannot see.
And some people are more vulnerable
Children, older people and people living with respiratory or cardiovascular conditions can be particularly vulnerable to the effects of indoor air pollution.
If coughing, wheezing, irritation, headaches or breathing difficulties seem to occur or worsen at home, do not automatically assume it is coincidence. Persistent or concerning symptoms should always be discussed with an appropriate healthcare professional.
So what should we do?
The good news is that improving indoor air quality does not require turning your home upside down. Start with the basics.
Cook with the extractor on. Ventilate when you can. Avoid unnecessarily overheating oil. Reduce unnecessary smoke indoors. Use cleaning products carefully. Keep extractor fans and ventilation systems clean and maintained. Let fresh air into your home.
Most importantly, become aware of what is happening to the air around you.
Because environmental health is not just about what happens outside our front door. It starts at home.
Our food, our faith and our traditions are part of who we are. We do not need to give any of them up. But perhaps we should start paying a little more attention to something we often take for granted: the air we breathe.
A healthy home is not one without the smell of spices, freshly cooked food or incense.
A healthy home is one where we can enjoy all of those things while still having clean, fresh air to breathe.
We do not have to choose between our culture and our health.
We simply need to make sure there is room for both.
