Purification installations for sewage; Air purification units; Air purifiers; Air purifiers; Air purifying apparatus; Air purifying apparatus and machines; Flow restrictors for reverse osmosis water purification units; Gas purification machines; Germicidal lamps for purifying air; Industrial air purifiers; Industrial-water purifying apparatus; Machine that generates purified water from the atmosphere and simultaneously purifies the air; Oil purifying installations; Rainwater purification installations; Separators for the cleaning and purification of air; Separators for the cleaning and purification of gases; Separators for the cleaning and purification of liquids; Sewage purification apparatus; Sewage purification installations; Tap-water purifying apparatus; Waste water purification apparatus, installations and tanks; Waste water purification units; Water purification and filtration apparatus; Water purification installations; Water purification machines; Water purification tanks; Water purification units; Water purifiers; Water purifiers for household purposes; Water purifying apparatus; Water purifying apparatus and machines
Environmental Control ApparatusAir purification; Leasing of water purification equipment; Rental of water purifying apparatus; Rental of water and air purification equipment; Water treatment and purification
Treatment of Materials