Did you know that it is possible, even likely, that the air is dirty in your house than it is outside? Common indoor pollutants are animal dander, radon, dust mites, smoke, mold spores, bacteria and other particles. The Environmental Protection Agency (EPA) claims that indoor air is up to five times more polluted than the air, on average, in the open. However, the air is much worse than average in many homes, with the airPollutants at levels twenty-five to one hundred times higher than outdoor air. Add to this the fact that the typical American spends a rich ninety percent of their time indoors and it is no wonder that allergies are on the rise. Is it possible to improve indoor air quality and reduce allergy symptoms? Yes, with a good quality air purifier allergy.