About

I invented the FresherVent™ because I was getting a septic smell in my new house laundry room when the clothes dryer was running.  I plugged a floor drain, sink and toilet in a bathroom adjacent to the laundry room.  The sewer smell then occurred in the next closest bathroom.  I tried running the air exchanger while the dryer ran, but the smell persisted because the air exchanger exchanges air at 1:1, it does not increase air volume into the house.  The solution was to open a window in the laundry room while the dryer is running.  Opening a window is inconvenient and does not prevent back flow.  The window was usually left open, making the room cold in the winter and hot in the summer.
I wanted something that would automatically open when fresh air flow is needed, and close when air flow stops.
What I discovered after using the FresherVent™ was shower steam dissipated faster, clothes dried faster in the dryer, and the kitchen exhaust fan removed smoke efficiently.  I no longer use my air exchanger, because fresh air is drawn in whenever needed, and only when needed.  The air is not preheated, as an air exchanger does, but I found my house was warmer and more comfortable because air wasn't randomly exchanged.  I installed a FresherVent™ in my parents house and the first thing they noticed was condensation on windows did not develop in cold weather.  They have wood window frames that have a problem with black staining from mildew caused by condensation running off windows.

~ Mike Van Horn