When the filters do not work properly, allergens may be released into the air, causing typical allergy symptoms, such as watery
eyes, runny nose, and wheezing.
Wash shower curtains, bathroom tiles, and grout regularly and use a dehumidifier in your house.
Also remove drapes, feather pillows, upholstered furniture, non-washable comforters and soft toys. Replace carpets with linoleum or wood. Vacuum (with HEPA filtered vacuum cleaners) soft furniture and curtains as well as floor.