Dear Sir,We are pleased to contact you through KITA(Korea Int'l Trae Associations)占쏙옙 information.We've been committed to completing and presenting solutions of the dental water disinfector with double effect features of "dental water disinfection & biofilm prevention of DUWL" to dentistry. Now we have confidence in recommending to you our product, QATER占쏙옙series.110 years ago in 1893 botanist, C. Von Nageli found algoid extinction in water with copper ion and germicidal effect of silver ion.Since then antifouling effect of copper and antimicrobial effect of silver have been noticed.Antifouling effect of copper ion and antimicrobial effect of silver ion are incorporated together for the key features of "biofilm removal & dental water disinfection" and realized by our QATER占쏙옙product for safety of dental water.QATER占쏙옙series is the only product that has performed triple features of effectiveness, residual effect and safety for dental water disinfection and biofilm removal.Our product's got patented in its mechanism, advancement and first application to dental water disinfection & biofilm removal.