Shanghai has added another 400-plus rest stations that ensure sanitation workers access to water, a hot meal and a break from the summer heat. The total number of the rest places, known as "love relay stations," has reached more than 6,100 in Shanghai after chain stores and outlets of Family Mart, Dicos and City Shop have joined in the scheme. These relay stations, identifiable by their red logo, have air-conditioning and provide free drinking water and recharge services. Most are equipped with a refrigerator and a microwave and some such as outlets of Family Mart are operating 24 hours.