California Standard Heating & Air's licensed, N.A.T.E.-certified technicians draw from 15 years of experience to improve indoor air quality and lower bills. The team installs and maintains systems from makers including Trane and Maytag, and protects homeowner health by clearing dirt and allergens from ducts, potentially cutting indoor energy costs by as much as 21% for every 0.4 inches of removed dust. To prevent future ventilation problems, the techs also volunteer information about safe chemicals and filters that will help zap microbes, Martian drones, and other airborne contaminants before they have a chance to squeeze their way inside.