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Engineer Sung Worl Jin next to bidetmega products

Coway R&D Genius Spotlight #2: Bidetmega

Meet genius engineer Sung Worl Jin. Jin has worked in the bath products industry since 2001, and is now the Team Leader for the LivingCare Development Team at Coway. Together with his team, Jin leads the development of new bath and kitchen technologies.

Technology inspired by life experience

A wide variety of experiences inspires the products the team engineers. “Even when traveling, I investigate the types of bidets and home appliances and carefully examine how Coway products are different,” Jin says. “At the mall, I often stop by the toy store. I gain inspiration from the toys. If you look closely at these structures, sometimes those ideas are good hints to make Coway products better."

When work first began on Bidetmega, they were researching which current of water pressure gave the right balance for cleanliness and comfort. “Water pressure is key to the use of the bidet. If the water pressure is too strong, it may affect overall anal health,” says Jin.

Then one day, Jin saw their daughter playing with a rubber hose, and realized the flexibility of the hose could help with the bidet’s water path. Coway’s now-patented iWave technology gives a multiple-stage wash with different pressures, allowing for maximum cleanliness, and a more gentle experience.

Personalized personal care

“A manual bidet has no electrical functions. And it can be an inconvenience. Especially during winter when the toilet seats will be cold and cold water will be present. But a smart bidet provides convenient functions. It can heat the toilet seat during winter, provide warm water, and adjust water pressure that is suitable for the user. Depending on the product, Coway's i-wave function automatically adjusts the flow of water and will enhance the user's convenience. By applying 'Child Mode' to the Coway bidet, we develop it so that even children can use it safely by lowering the pressure and adjusting the water temperature appropriately," says Jin.

“The i-wave technology provides customized water flow depending on the user, age and other conditions. On certain days, a user would like a strong water stream to help with bowel movements, and on days when the user's condition isn't great, a gentle stream would be the best option. Research also showed that men and women have different needs when it comes to water streams. All this collective data has helped develop our i-wave technology. Depending on the user and their needs, the technology will help with the range and time of cleaning. From a soft start to a rinse wash finish, this is an experience you can customize to yourself.”

Standing out from the competition

Jin’s work drives the development of innovative technologies and helps Coway stand out as a world leader in its industry.

“Coway is a leading company in sanitation technology,” Jin says proudly. “It was the first to sterilize water in the bidet for commercial use. It generates sterilized water by activating chlorine ions in tap water without additional additives. This water is harmless to the body but also cleans the bidet hygienically.”

Part of Bidetmega’s huge success is the fact that the nozzle tip sterilization before and after use prevents any bacterial growth, ensuring safe, clean personal hygiene for users.

“Every time I help develop a product, I feel a sense of accomplishment for anything big or small,” says Jin. “Each product is like a child, so it is rewarding to see the product grow into something big where customers will be satisfied with the use. In an age where information is quickly accessible and the introduction of online smart shopping, the fact that our products sell well means Coway is being recognized for quality and performance. And when a new technology receives national certification, we feel proud.”

Learn more about Bidetmega.


1Coway air purifiers have been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL (Korea Conformity Laboratories) testing.They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers.
→ Tested with Airmega Aim, 100, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250 Art, 250S, 300, 300S, 400, 400S, ProX

299.97% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard.
→ Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250 Art, 250S, 300, 300S, 400, 400S
→ All tested by JFRL and received above result within below time.

All tested by JFRL and received above result within below time.

- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes
- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes
- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes
- Pollen: Tested with Cedar Pollen extract, 60 minutes

3Aerosol test conducted in a Biosafety level 3 laboratory with two Coway air purifier models, Coway Airmega 250 and 400 for removal of SARS-CoV-2 Aerosol by US based MRI Global, a not-for-profit laboratory and partner of US Department of Defense. The test was conducted in a 13.1ft3 chamber. Virus was aerosolized for 15 minutes and the product was turned on high for 2 minutes. Result showed each product effectively removed over 99.98% of the SARS-CoV-2 in 2 minutes. This is a result from a laboratory experiment condition and result may vary in different conditions. This result does not imply it kills SARS-CoV-2 or prevents the transmission of Covid-19. Coway Airmega 250S and 400S are identical to the tested models and has equal performance with an additional mobile connectivity function.

4The concentration of ammonia, acetaldehyde and acetic acid were proven to be removed within 30 minutes by FCG Research Institute, Inc. Human Life Science Lab. It is not a demonstration result in the actual use space. Not all odors and gases may be supported. → Tested with Coway Airmega 150, 160, AP-1512HH, AP-1512HHS, 400, 400S

5The coverage area of the air purifier is based on an area where the air cleaner can make two air changes per hour (ACPH). An air change per hour translates to how many times an air purifier can clean an area, assuming the height of a ceiling to be 8 ft, in one hour. Therefore ** means two air changes per hour means that the cleaner can clean the area once every 30 minutes and * means air changes per hour means that the air purifier can clean the area once every 60 minutes.

10Terms and conditions apply. Discounts, including promotions, coupons, bundle discount and subscription discount, cannot be stacked on top of other coupons. During promotional periods, discount codes will not be able to be applied to orders. Promo codes may apply to products only—filters, accessories, and new products within 3 months of the release date are not included.