Allergen control refers to the practices and measures taken to prevent exposure to allergens, which are substances that can cause allergic reactions in sensitive individuals. This includes identifying common allergens such as pollen, dust mites, pet dander, and certain foods like nuts and shellfish. Effective allergen control involves cleaning, proper food handling, and using air filters to reduce allergen levels in homes and workplaces. In food preparation, allergen control is crucial to avoid cross-contamination. This means keeping allergenic ingredients separate from non-allergenic ones and clearly labeling products. Training staff in allergen awareness is also essential in settings like restaurants and schools to ensure the safety of individuals with allergies.