Molds also form in house plants, so check them often. You may have to keep all plants outdoors. Strong Odors or Fumes Perfume, room deodorizers, cleaning chemicals, paint, and talcum powder are examples of triggers that must be avoided or kept to very low levels. Dust Mites Dust mites are tiny, microscopic spiders usually found in house dust. Several thousand mites can be found in a pinch of dust.
Mites are one of the major triggers for people with allergies and asthma.
They need the most work to remove. Use an allergy control solution, a cleaner that can kill the mite allergen. Check with your doctor or pharmacist about what cleaner to buy. Tape over the length of the zipper. Put pillows in airtight covers.