Rental of water filters; rental of water filtration units for commercial use; material treatment; providing material treatment information; decontamination of hazardous materials; detoxification of hazardous materials; processing of biopharmaceutical materials for others; processing of earth materials to obtain metals [material processing]; refining of fuel materials; treatment of materials for third parties; treatment of materials using chemicals; treatment of waste materials; treatment of waste materials in the field of environmental pollution control; extraction of target molecules from fluids and gases