Replacing Gas Stoves Improves Asthma as Much as Medication 2026

A groundbreaking US study finds that replacing gas stoves with electric alternatives reduces asthma symptoms dramatically—comparable to or even exceeding the effects of common asthma medications. The research, led by Prof Ash Sehgal at Case Western Reserve University, showed a 70% drop in hospital admissions and missed work or school days for participants with poorly controlled asthma.

How the Study Measured Asthma Improvement

The study initially aimed to enroll 1,200 households near Cleveland, Ohio, but funding was terminated early by the incoming Trump administration. Despite this, the team completed stove replacements in 72 homes and analyzed results. Each person was monitored for four weeks before and four weeks after switching from gas to electric cooking.

Key Findings on Asthma Scores and Air Quality

Asthma symptoms were scored on the internationally recognized 0–6 scale. The average improved from 2.6 to 1.5—a change of 1.1 points, far exceeding the 0.5-point threshold for clinical significance. Participants also reported fewer wheezing episodes, reduced reliance on rescue inhalers, and fewer nights disrupted by asthma.

Air pollution measurements in 44 homes showed nitrogen dioxide levels dropped 70% after the switch. This aligns with known health risks of gas stoves, which emit pollutants linked to respiratory issues.

Comparison: Stove Replacement vs. Medication

Prof Sehgal stated: “The improvements in asthma symptoms following stove change were similar to—or even greater than—those reported in clinical trials of commonly used asthma medications.”

Key Takeaways for Homeowners

• Replacing a gas stove with an electric model can dramatically reduce asthma flare-ups.
• Hospital visits and missed school/work days fell by 70% in the study.
• Indoor nitrogen dioxide pollution dropped by 70%, improving overall air quality.
• The benefit matched or exceeded prescription asthma drugs—without side effects.
• Even a small-scale study detected a large effect, suggesting widespread impact.

Real-Life Impact: A Resident’s Experience

Angela Bland, a 38-year-old resident of Akron, Ohio, said: “I didn’t realise my gas stove was the issue until I used the electric stove. I now need my inhaler way less often.” Her story underscores the practical value of this research.

FAQ

The Ohio study, though cut short, provides compelling evidence that replacing gas stoves can be a powerful, non-pharmaceutical intervention for asthma control. If you or a family member suffers from asthma, consider making the switch—your lungs will thank you.