Sounds useful 4 winter!
NEW YORK (Reuters Health) - A heat exchange mask, designed to improve comfort in cold temperatures, also seems to protect against asthma triggered by breathing cold, dry air, according to a report in the medical journal Chest.
Asthma occurs when the airways tighten, limiting breathing.
Cold, dry air
NEW YORK (Reuters Health) - A heat exchange mask, designed to improve comfort in cold temperatures, also seems to protect against asthma triggered by breathing cold, dry air, according to a report in the medical journal Chest.
Asthma occurs when the airways tighten, limiting breathing.
Cold, dry air