The most benefit you can get from technology comes from air cleaners. Modern filters mostly catch larger particles such as bacteria, pollen, mold spores, but any virus traveling on a larger host can get caught by the filter. "It's not a see all, fix all. It will reduce, but not eliminate exposure," says Burroughs.
There's one caveat, though: The system must be working 24/7 to be effective. "It only works if the fan is blowing," says Burroughs. When properly used, a system like Honeywell's Electronic Air
cleaner captures 99 percent of the larger particles, and some of the smaller particles, too. And that's one good way to keep the flu virus from spreading in your home.
Honeywell F300 Electronic Air Cleaner
, about $955 to $1280.
After you've flu-proofed your house, take things one step further with secrets from women who never get sick