There are certain contaminants in homes that homeowners aren't aware of, and can ultimately make their house very unhealthy.
Farima Alavi of HGTV writes the number one thing that can cause an unhealthy home is the homeowner not keeping a barrier between themselves and their bedding. Items that can help resolve this issue are dust-proof cases for pillows and mattresses. Other causes include not changing a vacuum filter, not ventilating the bathroom, and having too many textiles in the bedroom.
Carpeting, rugs, pillows, upholstered headboards and chairs are all dust catchers. Consider minimizing furnishings for an easier-to-dust environment.
The living room is the same as a bedroom. Keep upholstery to a minimum to reduce the amount of dust mites.