"Across America, workplace allergies — in particular occupational asthma — accounts for approximately 10% of all asthma cases, according to the American Academy of Allergy, Asthma and Immunology. Symptoms can be mild where employees are uncomfortable and may need to use an inhaler more often or they can be severe where going to the office becomes a health hazard. Employers have a responsibility to keep their staff safe, but it can be difficult to identify and remove an allergen. Avoiding bringing allergens into the office in the first place is usually the better option..."