Todas las verdades son fáciles de entender, una vez descubiertas. La cuestión es descubrirlas . Con la moral corregimos los errores de nuestros instintos, y con el amor los errores de nuestra moral . Saber que sabemos y saber que no sabemos lo que no sabemos, ese es el verdadero conocimiento . El sabio no dice todo lo que piensa, pero siempre piensa todo lo que dice . La belleza de las cosas existe en el espíritu de quien las contempla .

Free Shipping on All Orders! Electrostatic air filters for your home furnace and air conditioning unit. Air Commander electrostatic air filters. Are 10 times more efficient then the standard disposable filter. By switching to a permanent electrostatic furnace filter. The air inside your home will be cleaner and fresher. How Electrostatic Furnace Filters Work.

Choosing the Right HVAC Air Filter. The best way to find out which air filter is the best for your heating and cooling system is to be aware and knowledgeable about the different types that are available. There is no doubt that air filters will always be an important component of heating, ventilation and air conditioning. Reasons to Change Your Air Filters Regularly.

Wednesday, June 15, 2011. Cooling and heating systems represent half of the energy used in a typical home. By changing or upgrading your ac. On a regular basis, keeps your electric bill down and your ac and furnace unit running at maximum efficiency.