For best results, Nanolex Interior Cleaner should be sprayed on to a Nanolex Microfiber Buffing Towel and then wiped gently over the surfaces to be cleaned before being left to dry naturally. When more intensive cleaning is required, Nanolex Interior Cleaner should be sprayed on, agitated gently using a PB Cleaning Brush, mopped up with a Nanolex Microfiber Buffing Towel and then left to dry naturally.