Gas Stove Replacement Cuts Asthma Symptoms as Much as Drugs 2026

Replacing a gas stove with an electric alternative can improve asthma symptoms as much as some medications, according to a groundbreaking US study. Researchers at Ohio’s MetroHealth found a 70% drop in hospital admissions and missed work or school days when people with poorly controlled asthma switched from gas to electric cooking. The findings highlight a simple, non-drug intervention for better respiratory health.

The Study: Gas Stove Replacement and Asthma Improvement

The study, led by Prof Ash Sehgal of Case Western Reserve University, originally aimed to enroll 1,200 participants near Cleveland, Ohio. However, funding was terminated early by the incoming Trump administration in December 2024, leaving only 72 households fully replaced. Despite the reduced sample, the results were dramatic. Each participant was assessed for four weeks before and four weeks after the stove swap using an internationally recognized asthma severity scale (0–6).

Key Findings

The average asthma score improved from 2.6 to 1.5, far exceeding the 0.5-point change considered clinically significant. Participants experienced fewer hospital visits, fewer days off school or work, less wheezing, reduced use of reliever inhalers, and fewer nighttime awakenings due to asthma. In 44 homes where air pollution was measured, nitrogen dioxide levels dropped by an average of 70%.

Prof Sehgal noted: “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.” Angela Bland, a 38-year-old participant from 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.”

Key Takeaways

• Gas stoves emit nitrogen dioxide and other pollutants that worsen asthma.
• Switching to electric stoves (induction or coil) can reduce symptoms as effectively as some drugs.
• The study was funded by MetroHealth but cut short, yet still showed clear benefits.
• Advocates call for policy changes to help low-income households switch to electric cooking.

FAQ

The study, though scaled back, provides compelling evidence that removing gas stoves from homes can be a powerful non-drug intervention for asthma. For households with children or adults who suffer from respiratory conditions, upgrading to an electric range may offer immediate, measurable relief. If you or a loved one have poorly controlled asthma, consider testing your indoor air quality and consulting with an allergist or pulmonologist about this cost-effective change.