Cooling/heating countermeasures, ventilation, environment and hygiene products are general terms for equipment to improve the workplace environment. In addition to temperature control, air exchange, and hygiene enhancement, there are tools for preparing shared green spaces. Dust collectors that collect dust, mist collectors that collect mist generated by machine tools, exhaust fans, air blowers that prevent air from settling, air purifiers, etc. are necessary equipment not only for comfort but also for health. Oil-water separators separate the aqueous solution and oil in industrial wastewater, saving the cost of industrial wastewater treatment. Trash compactors can also help reduce processing costs by crushing waste and reducing capacity. There are also hand sanitizing supplies, tissues, hand dryers, and water ozonators that help maintain hygiene in the workplace.