Dust doesn’t just aggravate allergies, it can also contain a variety of toxins from tire particles to pesticides to fire retardants present in carpet and furniture. Vacuum regularly with a HEPA filter at least twice a week and be sure to empty the contents after each use. Consider removing carpet and replace with wood, laminate or other material to reduce trapped pollutants. Change air filters in your heating and cooling system regularly as well Carbon monoxide and other toxins can be present in pressed wood furniture and improperly vented HVAC systems so have your system professionally checked to eliminate leaks and make sure your ventilation is working properly.