Pollens and molds may collect in them. If you must keep plants indoors, don't overwater them. Wet soil encourages mold growth. Go to top 4 strategies for indoor allergies Indoor allergens tend to occur year round. In addition to treating yourself for the symptoms they cause, it's also important to change your home environment.
Cleanliness is especially important in the bedroom, where people spend the most time.
Control dust mites. Remove carpeting and use hardwood, tile or linoleum floors. Cover mattresses and pillows with airtight, special-fabric covers, and wash all bedding weekly in hot water. Use pillows filled with synthetic fibers. Decrease animal dander.