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Air cleaner
There are several different types, but these useful appliances are no substitute for good cleaning and other preventive measures. Ventilation
Another word for “airing the place out,” ventilation is one of the top three ways to improve indoor air quality.CADR
Look for these numbers when comparing portable room air cleaners.Air watt
This standard measures the cleaning power of a vacuum cleaner.MERV
A standard for rating heating and air-conditioning filter efficiency.Dust, dusting
It's everywhere, all the time. Here's how to keep it to a tolerable minimum.Relative humidity
Even humidity is relative.HEPA
A term relating to filter effectiveness. HEPA filtration removes 99.97 percent of all particles 0.3 microns and larger. Fabric filter
A fancy term for a wide variety of dust catchers.Environmental agents
What the scientists mean when using this term.Furnace
Replacing or cleaning the filter each month is key.Wet-dry vac
Wet-dry vacuum cleaners are best suited to garages and unfinished basements since they tend to spew fine dust out with the exhaust air if you don’t install an optional filter. They can come in handy for limited jobs in the home, such as clearing out a clogged sink, sucking up pet accidents, etc.Duct
These metal conduits distribute heated or cooled air from a furnace or central air conditioner. No one’s sure whether they need regular professional cleaning.Television
These appliances attract a lot of dust. Here's how to prevent or remove it.Air filter
All forced-air heating and air-conditioning systems have HVAC filters.Grease, airborne
Prevention is at least as important as cleaning here.Humidity
What this term means for a clean, healthy home.Preventive maintenance
Take care of household systems and cleaning tools, and they’ll take care of you.Central air conditioner
Keep components clean — you'll reduce dust and save energy.Room air conditioner
Cleaning this appliance is best done in autumn.