I have very bad asthma and allergies, and most cleaning products are so harsh on my lungs that I end up in a coughing fit and wheezing for hours. This product is the only one that I can use without having any effect on my asthma. I can clean all day and never once cough or wheeze! And the cleaning power is amazing! I started out with some soap scum and mold when I was cleaning the house we had just rented, and it cleaned up so easily! This was tough stuff that even Scrubbing Bubbles required lots of manual scrubbing, but this stuff powered right through it! It's the only product I will buy and use!