My house is equipped with a forced-air heating & cooling system that uses ducts to distribute heated/cooled air to the multiple rooms. The average home loses about thirty percent of the air that moves through the duct system, because of holes, leaks & irregular connections at the seams. This causes much higher utility bills & leads to difficulty keeping the house comfortable, no matter the thermostat setting. High Summer & Winter utility bills, stuffy air, lots of airborne dust & temperature fluctuation between rooms are signs of issues with the duct system. Every several years, I ask a local Heating & A/C business to thoroughly inspect the duct system & supply recommendation. If there are any flaws contributing to energy waste, he performs the process of duct sealing. Because the ducts are concealed inside walls, ceilings, the attic & basement, accessing them is a challenge. Through a procedure called Aeroseal, the Heating & A/C business is able to resolve issues with the entirety of the duct system without extensive labor or causing damage to my home. He first seals off all of the return & supply vents. He then sends pressurized air, laced with adhesive polymer particles, at high volume into the duct system. As the pressurized air travels through the branching series of pipes, it escapes through any holes or cracks. The adhesive particles cling to the edges of the leaks, gradually building up until they create an airtight seal. The Aeroseal process is effective at sealing holes up to an inch in diameter. It only takes around an second, & there’s no mess or aromas left behind.