No smoking in the house. Upholstered furniture should be avoided in the bedroom. Book shelves and other dust catchers should not be in the bedroom. Stuffed animals should be of the washable type, otherwise keep them out of the bedroom. Try to prevent mildew and mold growth by keeping rooms dry, especially the bathroom and kitchen.
Mold tends to collect in shower stalls and in the garbage bin.
The clothes dryer should be vented outside. Exterior plants, trees, shrubs, etc. should be kept away from exterior house walls.