Controlling your exposure to triggers outdoors is hard. You may have to avoid outdoor air pollution, pollen, and mold spores. The air at home is easier to control. Some people with asthma and allergies notice that their symptoms get worse at night. Trigger controls in the bedroom, or wherever you sleep, need the most care.
Air conditioning can help.
It allows windows and doors to stay closed. This keeps some pollen and mold spores outside. It also lowers indoor humidity. Low humidity helps to control mold and dust mites. Avoid too much air-conditioning or too much heat.