• indoor air is polluted
• indoor allergens

Air exchange is an important part of indoor air quality. Dusting, vacuuming, and sweeping will help to reduce dust, but each time you clean some of that dust also gets sent into the air. If the air doesn't have anywhere to go, the dust will simply fall back onto your surfaces after you finish cleaning.

• indoor allergens
• indoor air is polluted
• air is too hot
• air smells strange

Sometimes, all your system needs is a good cleaning. Dust and other particles that float in the air get trapped in your filter whenever your air conditioner is running. Over time, this dirt and debris will build up and create a thick layer on the filter. The thicker the buildup, the harder it is for your system to push air through, which puts stress on the unit and makes your system less efficient. You should inspect the filter once a month. A good "rule of thumb" is if you hold the filter up to a light source and cannot see the light through it, you should replace the filter.

• indoor air is polluted
• indoor allergens

Dirt, dust mites, pollen, and dander collect and find a home in your rugs. People and pets moving around can then carry the buildup throughout your home. Additionally, your indoor fan can circulate dirt and dust particles into low traffic areas that may not be cleaned as often. That’s when the problems start. High amounts of particles in the home, even particles as common as dust, can cause allergies, asthma, and cold-like symptoms. To keep your air clean, make sure that you have proper air circulation, clean thoroughly, and keep pollutants to a minimum.

• indoor air is polluted
• indoor allergens

Most of us spend more time sleeping in our beds than on any other piece of furniture in the house. While we sleep, our bedding is building up allergens such as dust and dust mites quickly. Sheets should be washed at least once every two weeks to remove the dust and allergens and kill dust mites. The heat from the dryer should neutralize any allergens on the fabric. But, some people can be sensitive to some detergents. If your symptoms get worse after cleaning your sheets, try a non-allergenic laundry detergent and make sure that you're allowing your bedding to dry completely before you put them back on your bed.