It is nearly impossible to eliminate the sources of pollen allergens and dust mites, so your best course of action in eliminating the threat of these airborne particles is to install efficient air filters in your home's heating and air conditioning units. An efficient filter will remove over 90 percent of harmful airborne particles. The installation of air filters is a quick and inexpensive way to improve the quality of the air you breathe. By removing harmful allergens and particles from the air, the filters will help eliminate the painful and irritating symptoms of asthma and allergies. You will benefit in the short term by breathing more easily. In the long term, you will benefit from no longer being bombarded with allergens and irritants.