I have Multiple Chemical Sensitivity and was afraid to have the carpet cleaned because of past experiences with lingering odours. I called Ivan and he assured me it would not smell after the procedure. He was right! There was a faint smell during the cleaning which he said would occur, but this dissipated quickly and 24 hours later, there was no odour at all. I even put my nose in the carpet, and still could smell nothing. Ivan is so helpful and a joy to work with on top of the fact that he did the best cleaning on our carpet we ever had. We will be regulars. THANK YOU, IVAN! You have made one hurdle with MCS much easier!