Vastu places great importance on the kitchen — the seat of Agni. Modern research adds another reason to care about it: cooking, especially frying and high-heat cooking, releases fine particles and gases that can build up indoors.
What is released
Burning gas produces nitrogen dioxide and carbon monoxide; frying and roasting release fine particulate matter (PM2.5) and oily aerosols; and burning solid fuels such as wood or dung produces far more. The World Health Organization identifies household air pollution as a major health risk worldwide.
Five improvements that matter most
- Vent to the outside. A ducted chimney or an exhaust fan that vents outdoors removes pollutants at source. Recirculating hoods remove grease but not gases.
- Turn it on early, leave it on after. Switch the chimney on before you begin cooking and leave it running for 10–15 minutes after.
- Provide make-up air. An exhaust fan needs air to replace what it removes. Open a window slightly in the kitchen or nearby.
- Use the back burners where the hood captures fumes more effectively, and use lids.
- Keep the kitchen door open to a ventilated space — or closed, if the rest of the home is unventilated and the kitchen has good exhaust.
Does direction matter?
Traditionally the south-east is preferred for the kitchen, and east light on the counter in the morning is pleasant. But for air quality, ventilation matters far more than direction. A well-ventilated kitchen in any corner is healthier than an unventilated one in the "right" place.