Love this product. Squeezed the tubs, then set on buckets for return air. First day, after a ten hour shift, I come back to my apartment and don't smell smoke, as I am not a smoker. That said, I live beneath my landlords, who are very heavy smokers, so it gets sucked in their return and tumbles down the stairs to my return. Since placing one in each return vent, I no longer wake up sneezing. My bedding no longer smells like an ashtray, work clothes lack that 'gone-clubbing' scent. Am still thinking of upending the product into the lid for greater absorption, but that will also limit longevity. Have been using this product for a few weeks, so we'll see how it goes.

I have used this product fir 3 years now and it works. I also have used the spray to get a better coverage.

Bought these to try and fight the smell left over by a smoker in my new apartment, I was desperate for anything to work.

This gel was absolutely incredible, the smell is gone permanently within days.

The jar was too large for my AC unit, so I just set it on a window sill with a fan pointed at it to circulate the air over it, and within a few days there is no trace of the smell anymore. Absolutely incredible, 100% do recommend.

I put one of these, opened, into the furnace housing right after the filter and it really cleared the air without leaving a strong aroma of any kind. Very slight pleasant aroma present. My house is approx. 2500', 2 stories, and this fit the bill perfectly. Got rid of those slight odors that I can never track down. Oh the curse of having a very sensitive sense of smell. Especially around the holiday season when there may be cardboard boxes around. They tend to give off a somewhat offensive odor with the windows closed for Winter. Same goes for cardboard boxes in the Summer when it gets warm inside or the windows are closed for air conditioner usage.

Not big enough for the application I needed for.