How It Works

The Fresh Air Trickle Vent’s unique design allows fresh outdoor air to slowly and naturally enter the home while enabling the stale, polluted indoor air to escape.

Using a series of ‘diffusing’ holes, air enters the Fresh Air Trickle Vent, is slowed down as it passes through these holes, through the permanent polypropylene filter and then is distributed evenly through the vent into the room. Through this diffusing process, the air enters the home slowly, without causing drafts or drastic changes in temperature. When airflow through the vent(s) are not required, simply turn the patented adjustable head to seal airtight.

The Fresh Air Trickle Vent enables air circulation through a cross-ventilation or passive air process. It works on the basic science that as fresh air flows into the home, the amount of air within the space must stay constant, therefore the existing stale, polluted indoor air is expelled. Because of this process, it is recommended that at least 2 Fresh Air Trickle Vents are installed in the home or work area. As one draws in fresh air, the other will expel it. In high moisture areas, the Fresh Air Trickle Vent can be used in conjunction with an existing exhaust fan to enable faster airflow.

Common areas to use the Fresh Air Trickle Vent include:

Airflow Tests

The Fresh Air Trickle Vent is designed to ‘refreshen’ polluted indoor air with cleaner* outdoor air without electricity, chemicals or security risk.

Using the process of cross-ventilation the Fresh Air Trickle Vent gradually allows air from outside to flow into the home, while diffusing it to minimize any drafts or room temperature change. At the same time, the polluted indoor air flows out of the ventilator, leaving the room feeling revitalized.

Below are the results from airflow tests that show the rate of airflow through these natural ventilation units:

These results achieved at a testing facility in a controlled environment.

When an electric exhaust fan is used as the exhaust, the rates of airflow are increased. Rate increase is based on the suction power of the fan.

*studies have shown that a home’s indoor air can be 2-5 times more polluted than the outdoors.