Water purification installations; gas scrubbing apparatus; air purifying apparatus and machines; water purifying apparatus and machines; home water purifier; household air purifier; air cleaner for industrial purpose; industrial water purification device; hair dryer; cleaning apparatus for gas; electric boiling-water heater; kettles, electric; cooling installations for water; ionization apparatus for the treatment of air or water; carbonization furnace (industrial); induction water heater; water heaters; water supply installations; water softening apparatus and installations; drinking water device; wastewater treatment tank; chlorination plants for water treatment; lighting installations; lighting apparatus; light fixtures; light shades; light fittings; chandeliers; luminaires; wall and ceiling lights; lightbulbs and fluorescent tubes; uvc led lighting devices for the sterilization of commercial and/or household items; uvc lighting devices for the sterilization of commercial and/or household items; air and water purifiers; filters for purifying air or liquid; purification equipment; air filter elements.

Repair and maintenance of water purifying apparatus; repair and maintenance of industrial water purifying installation; maintenance of air and liquid purifiers; installation and repair of purification equipment; maintenance and repair of purification equipment; installation and repair of air purification device; electric appliance installation and repair; kitchen equipment installation; repair and maintenance of feed water pump or booster pump; water supply equipment repair; repair and maintenance of water pollution control equipment.

Air purification; water treatment and purification; water purification equipment rental; custom assembly of air purifiers and water purifiers for others; water purification; wastewater treatment; waste reprocessing.