Disinfection Procedures for COVID-19 Isolation Ward Area

Disinfection Procedures for COVID-19 Isolation Ward Area

2.1 Disinfection for Floor and Walls
 (1) Visible pollutants shall be completely removed before disinfection and handled in accordance with disposal procedures of blood and bodily fluid spills;
(2) Disinfect the floor and walls with 1000 mg/L chlorine-containing disinfectant through floor mopping, spraying or wiping;
(3) Make sure that disinfection is conducted for at least 30 minutes;
(4) Carry out disinfection three times a day and repeat the procedure at any time when there is contamination.

2.2 Disinfection of Object Surfaces
(1) Visible pollutants should be completely removed before disinfection and handled in accordance with disposal procedures of blood and bodily fluid spills;
(2) Wipe the surfaces of objects with 1000 mg/L chlorine-containing disinfectant or wipes with effective chlorine; wait for 30 minutes and then rinse with clean water. Perform disinfection procedure three times a day (repeat at any time when contamination is suspected);
(3) Wipe cleaner regions first, then more contaminated regions: first wipe the object surfaces that are not frequently touched, and then wipe the object surfaces that are frequently touched. (Once an object surface is wiped clean, replace the used wipe with a new one).

2.3 Air Disinfection 
(1) Plasma air sterilizers can be used and continuously run for air disinfection in an environment with human activity;
(2) If there is no plasma air sterilizers, use ultraviolet lamps for 1 hour each time. Perform this operation three times a day.

2.4 Disposal of Fecal Matter and Sewage
(1) Before being discharged into the municipal drainage system, fecal matter and sewage must be disinfected by treating with chlorine-containing disinfectant (for the initial treatment, the active chlorine must be more than 40 mg/L). Make sure the disinfection time is at least 1.5 hours;
(2)The concentration of total residual chlorine in the disinfected sewage should reach 10 mg/L.


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