The truth with allergy control is that carpet is excellent at suppressing allergens and keeping them from entering the air. Carpet cleaning and regular vacuuming keep the home’s indoor air filter clean. Yes, you read that correct. Carpet is the home’s indoor air filter. Everything gets filtered through the carpet and stored until cleaned. Once the carpet is full of soil, dander, and other particulate soil then the filtering burden is passed onto the upholstery, mattresses, and hardwood floors.
For some fascinating information from Shaw Floors about Carpet and Allergens – Answers to Common Misconceptions