May Day Weather Inquiry in Yulin, Shaanxi Province

Yulin Weather Forecast _ One Week Weather Forecast _ China Weather Network-Recent Visit: Zhengzhou Weather

Wednesday, April 29th Lunar March 1 1 day (real time: 25℃)

13℃

very good

gentle breeze

Real-time air quality: 62 good

Thursday

April 30(th)

25 ~ 9℃

light rain

gentle breeze

Friday

May 0 1

22 ~ 12℃

light rain

The breeze is now seriously polluted. When you go out to wear a mask and buy an anti-fog mask, you can look at the standard, and the filtration efficiency depends on the standard. You should be familiar with the N90 and N95 series masks of 3X brand, both of which are named after NIOSH standard. In addition to NIOSH standard, ASTM standard of American Society for Testing Materials, KN standard of China and FFP standard of Europe are all universal and can be used to measure important indicators of masks. The Puwei server for medical masks imported from the United States has good filterability, preventing both particles and droplets. The filtration efficiency is 99.8% for particles as small as 0. 1 micron, and 99.9% for bacteria or virus carriers as small as 0.3 micron (common in droplets). Adopt SecureFit patented technology, adjust to different face shapes to achieve a high fit. There is J 2568 in the east. I wish you good health and hope to adopt it.