Study Suggests Gas Stoves May Affect Indoor Air Quality and Asthma Symptoms
A recent study conducted in the United States suggests that replacing gas stoves with electric stoves may improve indoor air quality and help reduce asthma symptoms in some people.
Researchers from Case Western Reserve University followed 85 adults and children with severe asthma. Participants were monitored for four weeks before their gas stoves were replaced with electric models at no cost. Researchers then continued to observe their health for an additional two to three months.
The study also measured indoor air quality before and after the replacement, with particular attention to nitrogen dioxide, a pollutant commonly produced during the combustion of natural gas.
According to the researchers, gas stoves can release nitrogen dioxide and carbon monoxide, which may contribute to reduced indoor air quality and potentially affect respiratory health, particularly among individuals with asthma.
Key Findings
The researchers reported that:
- Indoor nitrogen dioxide levels decreased by up to 70% after switching to electric stoves.
- Many participants experienced an improvement in asthma symptoms during the study period.
- Reported absences from work or school due to illness declined by around 80%.
- Visits to healthcare providers related to asthma symptoms decreased by approximately 70%.
Researchers Recommend Further Studies
The researchers emphasized that the findings should be interpreted with caution because the study involved a relatively small number of participants and lasted only a few months.
They noted that larger and longer-term studies will be needed to better understand the relationship between cooking appliances, indoor air quality, and respiratory health.
While the results are encouraging, experts recommend that individuals with asthma consult healthcare professionals before making decisions about managing their condition, and ensure proper ventilation when using any type of cooking appliance.

