Keep air-conditioner filters clean and replace them regularly. If you use a home humidifier, make sure that it is maintained and cleaned often and properly. They are excellent breeding grounds for biological agents. Fresh air can lower the particle content of indoor air, so air out your home regularly. Poorly maintained ventilation systems cultivate the population of biological agents.
Good ventilation is important in preventing the build-up of biological particles.
Controlling dust is very important for people who are allergic to animal dander and mites. Use synthetic bedding instead of wool blankets or feather-stuffed pillows and comforters, which do not stand up to washing. At the office, talk to the building manager about maintenance of the ventilation system. Urge that filters be kept clean while in operation, and that there is an adequate regular exchange of air throughout the building. A healthy dose of common sense is the best way to control the spread and multiplication of biological agents.