irritant

Entering the tunnel, Johnston helped other rioters flush chemical irritants out of their eyes.

While Hasina’s stay in India remains an irritant, a recent interview by Bangladesh’s interim leader Muhammad Yunus also took India by surprise.

Protesters, meanwhile, accused officers of being heavy-handed - using flashbang grenades and irritant sprays to control the crowds.

There were widespread reports of people coughing and gagging on the smoke, feeling short of breath and suffering from eye pain due to the irritants in the air.

Emphysema is a lung condition that causes shortness of breath and is caused by long-term exposure to airborne irritants including tobacco smoke, according to the Mayo Clinic.