What are the side effects of home diffusers?
Essential oils are highly concentrated, so inhaling them directly can irritate the respiratory tract. This may lead to symptoms such as coughing, nose and throat irritation or shortness of breath. Yes, essential oils can go bad—but they don’t spoil in the same way food does. Instead, they oxidize, which means their chemical composition changes when exposed to oxygen. This process happens gradually and leads to shifts in: Aroma – the scent may become flat, sour, or sharp.