Effectiveness of air distribution and pollutant control in isolation wards

 Based on the typical isolation wards of COVID-19, simulates the indoor thermal environment and the removal effect of pathogenic microorganisms under the traditional air diffuser ceiling supply, the vertical wall-based attachment ventilation, and the vertical wall-based attached air supply with the deflector (in practice, the deflector can be folded). Evaluates the effectiveness of indoor air distribution. The results show that the air distribution of vertical wall-based attachment ventilation with the deflector, at the 1.5 m height breathing zone in the ward, has higher ventilation efficiency of 2.9 to 6.5, an average air velocity of 0.13 m/s, and an average temperature of 21.8 ℃. The pollutant removal effect is better than that of the air ceiling supply with traditional diffusers, which can be recommended as the preferred air distribution mode in isolation wards.