UV lamps are an effective method of disinfection of the air, but their effective distance and time will be affected by a variety of factors, such as the power of the UV lamp, the distance between the lamp and the disinfected items, the humidity and particulate matter in the air, etc.
Generally speaking, the effective distance of the UV lamp to disinfect the air is 1-2 meters, the disinfection time is about 30 minutes to 1 hour, and the timer starts from 5 to 7 minutes after the lamp is turned on (this is because the UV lamp needs a certain time to reach a stable working state after it is turned on to ensure sufficient radiation intensity).
When using UV lamps to disinfect the air, the following points should be noted:
1.Choose the right UV lamp
The power and wavelength of the UV lamp can affect the effectiveness of the disinfection. In general, the higher the power and the shorter the wavelength, the better the disinfection effect of the UV lamp.
2.Control the distance of the lamp from the item to be disinfected
The closer the lamp is to the item to be disinfected, the better the disinfection effect. However, too close to each other will cause the lamp to overheat and affect its service life.
In practice, it should be ensured that the height of the UV lamp suspension is appropriate, and it is generally recommended that the distance from the roof is less than 15 meters, the distance from the ground is less than 2-25 meters to ensure that the UV light can evenly cover the disinfected area.
3.Pay attention to humidity and particulate matter in the air
Humidity and particulate matter in the air can affect the ability of UV rays to penetrate, which can affect the effectiveness of disinfection. In environments with high humidity and high particulate matter, the disinfection time should be appropriately extended.
4.Replace the lamps regularly
The service life of UV lamps is generally 8,000-10,000 hours, and the disinfection effect will be significantly reduced after the service life. Therefore, the lamp should be replaced regularly to ensure the disinfection effect.
It should be noted that ultraviolet disinfection is not a panacea, and can also be combined with other disinfection methods, such as wiping surfaces, using disinfectants, etc., to achieve better disinfection results.
At the same time, when using ultraviolet lamps for disinfection, it is important to take necessary safety measures to avoid direct exposure of ultraviolet rays to the human body** and eyes.
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