... >without medical and biology additives 3>eco-friendly. Nano Silver Antimicrobial Agent SpecificationBrownish yellow or yellow according to different concentration.Particle ... , etc.), Venereal Disease( syphilis, gonorrhoea, etc. ), Rhinitis, Tympanitis, etc. 4. Hygiene material disinfection: Cotton swab, Cotton ball, Bandages, Catheter, Mask, Operating ...