Can medical alcohol be sprayed in a car?

1 Answers
McKaden
07/28/25 11:44pm
Medical alcohol can be sprayed in a car. To achieve disinfection and sterilization effects, it is necessary to use medical alcohol with a concentration of 75%. If the alcohol concentration is too low, it will not be effective in killing bacteria. The molecules of alcohol have strong permeability, allowing them to penetrate the bacterial membrane and enter the interior of bacteria, coagulating the proteins that form the basis of bacterial life and thus killing the bacteria. Before using 75% alcohol to disinfect the vehicle, the owner should turn off the engine and ensure the car is not in operation. It is also important to maintain proper ventilation in the car. Since 75% alcohol has a flash point around 22°C and evaporates quickly, the owner must ensure there are no open flames nearby and control the amount of alcohol used to avoid excessive alcohol concentration in the air, which could lead to an explosion.
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