An air cleaner in the house is very important especially with the tightly sealed windows and doors and the extra foam insulation in the attic and walls, pets, cooking odors. This can cause much indoor air pollution and can lead to many allergies, diseases and sleep disorders. Clean air can also help reduce snoring, stop sneezing, reduce allergies, strengthen your immune system and eliminate dry mouth and runny nose.
I like the Austin Air Brand air cleaner as the filter weights almost 15 lbs and lasts about 5 years.
Check it out here at monstervacuum.com