Split Systems HVAC. Radon.

Test your homes for radon. Radon is the second leading cause of lung cancer in the U.S. You can't see or smell radon, but it's not hard to measure the level of radon in your home. Testing is easy and should only take a little of your time. 
 
EPA recommends fixing your home if a test shows radon levels in your home exceed the action level of 4 picocuries per liter of air (pCi/L). If you are building an addition (or a new home!) there are radon-resistant new construction techniques you can use to help prevent high radon levels.

Comfort Star Mini Split. Lead.

Old lead-based paint is the most significant source of lead exposure in the U.S. today. The dust and chips from lead-based paint are dangerous when swallowed or inhaled; children and pregnant women are especially at risk. Harmful exposures to lead can occur when lead-based paint is improperly removed from surfaces by dry scraping, sanding, or open-flame burning, or by demolition. A home built before 1978 is likely to have surfaces painted with lead-based paint.

Comfort Air Mini Split.  Moisture Control.

Too much moisture in a home can lead to mold, mildew, and other biological growth. This in turn can lead to a variety of health effects ranging from more common allergic reactions, asthma attacks, and hypersensitivity pneumonitis, to death. Excess moisture can be in the form of high relative humidity, leaks in the roof, walls, or plumbing, air moving from the inside or the outside into the walls, or from the basement or crawlspace. Methods to control moisture include fixing any water leaks; providing ventilation in the home; air-sealing; properly using vapor barriers in wall construction, roofs; and preventing soil moisture from entering the home through basements and crawlspaces. Read more about moisture control.

Comfort Aire Ductless Mini Split.  Ventilation.

Good ventilation is important because it protects both your health and your home. Good ventilation protects you and your family from unpleasant odors, irritating pollutants, and potentially dangerous gases. Well-planned ventilation also helps prevent the growth of mold and mildew, which can cause allergic reactions and aggravate lung diseases such as asthma. Ventilation is important both during renovation and also as long as you occupy the home. Remodeling may present an opportunity to ensure your home has adequate ventilation.