Excellent product. My ancient 19.5 year old Bengal has frequent accidents on the pavers in our outdoor area and I've tried just about everything trying to get rid of the smell. My daughter recommended Petlab and I've got to say it's brilliant! No more smell even though I couldn't really flush the pavers first as recommended...I just sprayed on liberally after wiping over with a damp paper towel. I've just bought the 5 litre bottle now after starting with the 1 litre. Thank you Petlab, you've saved my sanity and given me back my sweet smelling laundry and outdoor room!