This program includes:

• water purification units designed to capture, clean, re-use or pretreat wastewater;
• water filtration systems, including units that filter out harmful bacteria and parasites using replaceable filter media; 
• sewage treatment equipment, consisting of equipment for a sewage treatment facility and/or pretreatment of sewage wastewater generated by a small municipality, septic treatment systems;
• installation and maintenance;
• services relating to air and water purification equipment; and
• and air purification equipment and supplies.