How to choose an anti-UV sun umbrella?

Update:13-10-2018
Summary:

1. Look carefully at the protection level mark before p […]

1. Look carefully at the protection level mark before purchase.
The "Assessment of UV Protection Performance of Textiles" promulgated by the General Administration of Quality Supervision, Inspection and Quarantine stipulates that only UVF (UV protection coefficient) is greater than 30, and UVA (long-wave ultraviolet) transmission rate is less than 5%, it can be called UV protection products, protection grade The standard is “UPF30+”; when UPF is greater than 50, it indicates that the product has excellent UV protection and the protection rating is “UPF50+”. Consumers should carefully check the protection level logo when purchasing, and then choose the custom umbrella that suits them according to the local sun exposure.
2, look at the umbrella.
Fabric properties of the umbrella surface: Generally speaking, cotton, silk, nylon, viscose, etc. have poor UV protection properties, while polyester is preferred. The polyester-containing fabrics commonly used for umbrellas are satin cloth, Macintosh cloth, and the like. In addition, the anti-UV performance is best in satin fabric, followed by twill and plain, and the deeper the color, the better.
3. Choose brand-name products.

Beware of ordinary umbrellas and fake anti-UV umbrellas.