Approx. 80 ml/m2, i.e. 1 liter of PNZ Exotic & Hardwood Cleaner is enough (depending on soiling and the amount of thinner) for approx. 12 m2 per liter.
After the application of Exotic & Hardwood Cleaner, allow adequate drying for approx. 12–24 hours. Then you should re-treat your wood with Furniture Foam, Teak Oil, Bangkirai Oil or Douglas Fir Deck & Patio Oil, in order to prevent rapid graying or weathering, and to avoid renewed soiling.