Indoor formaldehyde risks and plant-based mitigation strategies

Common household items such as MDF furniture, particleboard, plywood, and laminate flooring can release formaldehyde into the air. This colorless, pungent gas is classified by the International Agency for Research on Cancer (IARC), an arm of the WHO, as a human carcinogen. High concentrations can lead to eye irritation, respiratory issues, coughing, and difficulty breathing, particularly in newly renovated or furnished spaces.

To mitigate these risks, NASA research has identified several indoor plants capable of reducing formaldehyde levels in enclosed environments. Recommended species include Golden Pothos (Trầu bà vàng), which is resilient and easy to maintain; Spider Plants (Lan chi), which are compact and suitable for hanging; and Snake Plants (Lưỡi hổ), which grow vertically and require minimal space. Increasing ventilation after installing new furniture is also a key preventative measure.