After many DIY products, all of which did not bring the success that I bought at Amazon Pufas antifungal spray. Many have expressed in their reviews that the spray should smell strongly. I have to say it's true. However, I thought it would be even worse. It smells just like chlorine and one should ventilate much. For me, the smell was already almost gone after a few hours. The application is very simple. Spraying 30 min wait and see and be amazed. So it was at least for me. I have the spray and sprayed the mold dissolved formally in front of my eyes. After 30 minutes I wanted to wipe with a damp cloth (as it says in the description) but there was nothing more. For safety, I have sprayed again and will now look like the long-term effect is. One more thing that spray bleach, so watch where you applying it.