Effect of two spray disinfection methods for ambulance air and surface
2021/5/6
Effect of two spray disinfection methods for ambulance air and surface
Ambulance space, surface and ground joint aerosol or dry fog spray disinfection: disinfect the air, inner wall, doors and windows, object surface and ground in the medical warehouse at the same time, and use small aerosol spray for disinfection tools (spray droplets ≤ 50 μ m account for more than 90%, spray distance 6-8 m, spray amplitude>1 m, flow rate 250ml/min) or Metso DF-3 dry fog spray (spray droplets 7-10 μ m, spray distance and spray amplitude are not required, flow rate 32ml/min)
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disinfectant |
Small aerosol spray |
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Peracetic Acid Solution |
Peracetic acid concentration: 5% Reference space usage: 20-40ml/m ³ Surface reference dosage: 100ml/㎡ (surface evenly sprayed with moisture without flowing water) Method: Close the doors and windows - spray - seal for 1h - open the window for ventilation |
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hydrogen peroxide solution |
Peracetic acid concentration: 6% |
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chlorine dioxide solution |
Peracetic acid concentration: 2% |
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disinfectant |
Teling TL-X150 dry fog spray |
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Hydrogen peroxide and peracetic acid mixed disinfectant |
Disinfectant concentration: 2.2% hydrogen peroxide+0.45% peracetic acid
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hydrogen peroxide solution
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Peracetic acid concentration: 6% |
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Comparison of advantages and disadvantages of two spray methods
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Small aerosol spray |
Teling TL-X150 dry fog spray |
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Uniformity of disinfectant diffusion |
The droplets are large, with obvious settling motion and cross diffusion uniformity, especially in small slits and inside the cabinet |
The particle size belongs to dry mist, with no obvious settling motion, and the diffusion uniformity of disinfectant droplets is good |
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Convenience of operation |
When spray is manually operated, there will be certain deviation in each disinfection process |
Automatic spray disinfection with good repeatability |
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Disinfection process |
Air and surfaces need to be disinfected separately |
Integrated disinfection of air and surface |
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Disinfectant dosage (calculated based on a 10m ³ emergency compartment and a surface area of 28 ㎡) |
About 3L |
100ml |
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Corrosive disinfectant |
The concentration and dosage of disinfectant are high, resulting in excessive corrosion |
Disinfectant has low concentration, low dosage, no corrosion, and does not corrode metals, polymer plastics, rubber, etc |
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