Your home's carpets act as a giant filter trapping in soil, dust, debris, allergens, and contamination. Because of this, carpets in general improve air quality because they act this way, BUT just like your HVAC system (if you have one), you would have to change out your filter every 6 months to ensure that it continues to filter correctly.
Common misconceptions are that individuals with allergies or asthma should avoid carpeting in the home. Contrary to such, the opposite is true. Studies have indicated that properly maintained carpet helps reduce symptoms and is the smartest flooring choice for those suffering from allergies or asthma. When carpet is kept clean and dry, compounds such as mold can be prevented from growing. Furthermore, carpet has been recognized as one of the lowest emitters for volatile organic compounds among a variety of flooring options and interior finishes.
Although most people wouldn't think that clean carpet could improve indoor air quality, it does have a very profound effect. Gravity causes household particles, such as dust, debris, pollen, insect / pet dander, and more to settle on the floors. Carpet fibers trap the particles, removing/reducing them from breathing circulation in the air. Routine and professional cleaning by Biohazard PRO effectively removes contaminants from the carpet and helps keep them out of the air you breathe.