Pass box is a device utilized for transferring goods between the interior and exterior of a cleanroom. Equipped with UV light, the pass box plays a crucial role in maintaining cleanliness. In this article, we will delve into the significance of UV light within the pass box. Let's explore further!

What is UV light?

UV light, also known as ultraviolet light, is a form of electromagnetic radiation that cannot be seen by the human eye. This type of radiation is emitted by the sun in waves with varying wavelengths, which refer to the distance between the peaks of light waves. UV light is typically measured in nanometers (nm).

There are 3 bands of UV light:

  • UVA or long-wave UV (315~400 nm)

  • UVB or medium wave UV (280~315 nm)

  • UVC or short wave UV (100~280 nm)

In the pass box, the chamber is disinfected using ultraviolet light, which helps to prevent the spread of pathogens through the air or on surfaces.

Ultraviolet rays have the ability to destroy cells, so it's important to avoid direct exposure to human skin during the disinfection process.

It's crucial not to stare directly at UV light as it can be harmful to both the skin and eyes. However, shortwave ultraviolet rays are blocked by glasses, so wearing protective eyewear can help prevent eye damage.

In general, it's recommended not to leave the UV germicidal lamp on for extended periods when using the pass box. Pass box manufacturers typically include an inching switch for the germicidal UV lamp to minimize harm to operators and reduce human exposure to UV radiation.

Structure of pass box UV light

The UV light system in the pass box consists of several components, including a left-side body, a right-side body (equipped with interlocking devices), an upper-side body, a lower-side body, an inner wall, and a UV germicidal lamp. The pass box is designed with a double-door interlock structure, facilitating the transfer of small items between clean areas or between clean and unclean areas. This design helps to minimize the number of door openings in the cleanroom and reduces the risk of cross-contamination between these areas.

Pass box UV light images

Đèn cực tím pass box

Đèn diệt khuẩn pass box

VCR - Vietnam Cleanroom Equipment is specializing in providing all kinds of pass boxes. We supply products to contractors nationwide with competitive prices and perfect quality. Our products range from Static pass box, Dynamic pass box, VHP pass box.

For details, please refer to the website:

https://en.vietnamcleanroom.com/

Read more: How long does it take to turn on UV lamp in a cleanroom