© 2012 ElasTek Inc.

PuriFresh® Ventilation Products


Flow Visualization:

The image left shows a PuriFresh® ERV in our display window, viewed from outside the window. Streamers are attached to the four louvered outlets, to allow visualization of the flow patterns during operation. Two additional streamers are attached to wooden dowels below the ERV to help visualize the flow away from the ERV.

Click on the image to see a movie of the flows during operation. Note the streamers on the wooden dowels showing flow away from the unit. This shows that the stale-air flows away from the ERV rather than being drawn back into the openings receiving fresh-air. Click on our FAQs link of the PuriFresh® ERV to read how the Bernoulli principle keeps essentially all of the stale-air from contaminating the fresh-air.