Clear air before decorating.

• Position: Christmas Trees - Brief article

With people's pending an estimated 90% of their time indoors, air quality should be an important consideration during the holidays--and year-round, stresses Kevin J. Slates, director of Indiana's Occupational Health and Safety Laboratory. He points out that there is more to the aromas Of pine trees than memories of Christmases past. Spores in the branches, needles, and bark can create bothersome odors for people with sensitive allergies.

Live Christmas trees can be a haven for bugs, allergens, and mold. For people with fragrance allergies, set the tree in water in a heated garage or porch for a day or two to acclimate it to warmer temperatures and let insects leave the branches. This will decrease the likelihood of an allergic reaction or having bugs in your home.

Do not let live Christmas trees dry out. Water regularly, but keep in mind that...