Ⅲ. Market trends of the perlitefilter1. DomesticmarkettrendsSince the first swimming pool was constructed in Korea, multi-layered filters have been the most commonly used filters to date.Such filters are widely used by swimming pools around the world. In recent years, filters and silicic filters have also been introduced to the market in addition to the multi-layered filters.One of the reasons perlite filters are increasingly adopted by renowned water parks, swimming pools and resorts in Korea is the unique advantages of being economical and environment-friendly.Perlite filters were first introduced to the Korean market in 2013, having been developed with home grown technology.Since then, it has been installed at large project sites such as Hongcheon Daemyeong Vivaldi, Samcheok Sol Beach, Lotte Sokcho Resort, Songpa Water Kingdom, Yeongjong-Do Paradise City (1st and 2nd complex), Dongbu Mountain Tourist Complex Landmark Hotel, Jeongseon Hi Won Water World, Gangneung Sky Bay Hotel, Geoje Hanhwa Belvedere and Hae Un Dae LCT in Korea, as well as a waterpark in Russia, Clark Hills Resort in the Philippines, Hon Tom Water Park in Vietnam and Chengdu Water Park in China. Given that once in stalled, water treatment systems must be used for 20 years or longer, thorough verification of their function is essential. The adoption of perlite filters by numerus large-scale projects show that they have met the strictst andards for function.In the past the high unit cost of perlite filters compared to combined filters has been a weakness, but this is offset by many strengths such as savings that occur in the installation area, installation costs and maintenance costs, as well as the convenience in its management. Cost-savings in the manufacturing process, the sale price of perlite filters have been frozen at a certain level over the years, while the sale price of combined filters has increased. This has allowed perlite filters to secure sufficient competiveness now.Moreover, there have been continuous efforts for quality management and improved water quality to meet international standards. Steps are currently being taken to acquire international certification on the overall manufacturing and function of the perlite filters to compete better not just in Korea but in the global market. In particular, certification from one of the world’s most authoritative water-related institutions is currently underway on the filter’s manufacturing process, quality and the water quality the filter provides. Certification by a Korean authorities is also planned.Perlite filters offer various response features to stay in step with the trends for centrally controlled water treatment systems. Using digital telecommunication for a more flexible response system is an essential part, as automation and application of high technology is a trend in the market at home and abroad.2. Global market trendsPerlite filters have been applied in various areas requiring water treatment outside of Korea for over 20 years. Unless there is a drastic change, a quantitative growth rate that is similar to that of other filter systems using silicic acid, active charcoal or cellulose fiber is expected.[Image18] Sales scale by type of filter in USAIn markets outside of Korea, the perlite filter system market has seen more growth in the healthcare, medical and food and beverages market rather than that for water treatment used in swimming pools. This seems to be thanks to the low-cost and high-efficiency features of the system.Because of the importance of validation in the markets for healthcare and pharmaceuticals, the demand for perlite filters that can filter out finer particles is growing. A growing concern among consumers about the contamination of drinking water has also led to an increased market share in the field of sewage purification and treatment.3. Approach to general marketsThe application of perlite filters is not limited to water treatment in swimming pools. The manufacturer has recently developed a quiet perlite filter that can be applied to the water tank in an apartment complex to provide clean tap water to each household. The water purification system applied to tap water in Korea boasts high standards that are on par with those of highly industrialized countries. But sometimes even if high quality source water is produced, the highly dilapidated the water pipes underground or pumps at the reservoir or pressurization sites can make it difficult to ensure that clean water reaches the end consumer.[Image19] Dilapidated water pipes,Source: an article from Youngnam Daily NewspaperAccording to a report by the Incheon City government on rusty tap water, contaminated tap water can be considered a major disaster that causes great suffering on the part of citizens. Even if it is a newly built apartment, the water pipelines may be old and therefore you can never be sure. Perlite filters applied to water tanks at apartment complexes constantly filters out the water supplied to ensure that the water that reaches the tap of each household is free of contaminants.The manufacturer is a leader in the market for perlite filters and has been continuously conducting research and development for various applications of the filters and the conservation of water and energy as a result.───────References1. Water and Climate Change, Compilation of documents on the occasion of the International Day of Water, Korean Ministry of Environment, K water, 20202. Grand View Research. Depth Filtration M ark et Analysis By Media type (Diatomaceous Earth, Activated Carbon, Cellulose, Perlite), By Product (Cartridge Filters, Capsule Filters), By End-use, And Segment Forecasts, 2018 - 20253. Investigation of Employee Symptoms at an Indoor Water park Health Hazard EvaluationReport HETA 2007-0163-3062 Great Wolf Lodge Mason, Ohio. Centers for Disease Control and Prevention, DEPARTMENT OF HEALTH AND HUMAN SERVICES. June 20084. SCIENTIFIC AND BEST PRACTICESRATIONALE Annex to the 2018 Model Aquatic Health Code, 3RD Edition Posted on 07/18/2018 Centers for Disease Control and Prevention, DEPARTMENT OF HEALTH AND HUMAN SERVICES. 20185. Test of precoat filtration technology for treatment of swimming pool water Morten Lykkegaard Christensen, Morten Møller Klausen and Peter Vittrup Christensen. IWA Publishing 2018.6. Guidelines forsafe recreational water envi ronments VOLUME2 SWIMMING POOLS AND SIMILARENVIRONMENTS World Health Organization. WHO. 20187. Model Aquatic Health Code. CDC. 2018