by Mark Hansberger on July 26, 2011July 26, 2011 Need A New Air Filter? Look Up MERV When You Go Out Shopping Air quality is a real problem in many homes. According to studies, indoor environments can contain substantially more pollution than outdoor air, and prolonged exposure to low-quality indoor air can lead to serious and chronic […]Read More Filed Under: Air Conditioning– Air Filters– IAQ – Indoor Air Quality– MERV– Thermostats Tagged With: indoor air pollutants– merv ratings– relative effectiveness– Yuma area in Arizona
