Public places such as airport, train station, bus station,shopping mall, showroom, gymnasium,restaurant& bar,school,conference hall, shop-floor, canteen, office, recreation facilities, etc.

Textile and clothing industry such as weaving factories, woolen textile factories, silk factories, socks factories, knitwearfactories, cotton spinning factories, flax textile factories and garment workshop, leather industries, shoes-making factories; etc.

Other places such as product storage, hot industry,greenhouse and stock-raising farm, etc.