Our "new" old 1952 house has a lingering old smoke smell. Not strong but I noticed it whenever I entered. I used PURA to try to help but I have a large air volume and those weren't working well enough for me. Decided to drop the $200 on this and I will say, its worth it for us. Hope this helps - not a fancy video but covers the questions I had when looking for reviews. I was not given this product to make a video.
