|MadSci Network: Immunology|
Portable air purifiers may help as long as you remain confined to your room. Most portable air purifiers are not efficient enough (in terms of air exchange) to do much good in any place except a small room. If you decide to get one, make sure that they use ULPA or HEPA filters. Check the rate of air exchange before making a decision to purchase, and make sure you change the filter at the recommended interval. If you need to reduce allergens in an entire house, HEPA filters can be integrated into central heating and air-conditioning systems to reduce airborne-particles associated with allergies, particularly allergies to pollen, animals, mites and mold. However, the unit only works when the fan is running, which would require the system to be left on continuously.
Try the links in the MadSci Library for more information on Immunology.