In view of the threat of the COVID, the government recommends wearing a cloth face mask on top of a disposable mask. Our cloth face mask treated with the 3M silver nano spray offers EXTRA protection by killing bacteria and viruses as they land on the surface. To encourage the use of cloth face masks, we are offering to sell the set of sprays at a special price of HK$50 or HK$120 for three sets. Each set includes one 50 ml hand sanitizer, one 100 ml surface cleanser and one 3M silver nano spray enough for 7 sprays. Each respray offers protection for thirty washes.