Feel tired with the pollution: Get a mask! - Beijing Air Quality.
There are many kinds of masks for air pollution protection (Totobobo, Respro, Vogmask, And if you forgot to take One, you can also get this mask from any convenience store in China (like 7-Eleven). From all the test result, N95 is good enough for filtering most of the PM2.5 Totobobo™ Hightech Anti-Pollution Masks
Risk Reduction Behaviors Regarding PM2.5 Exposure among
Aug 12, 2018 In particular, utilization of air filtration and cleaning the nasal cavity were rarely reported. In order to reduce the risk of PM2.5 exposure on high pollution days, it is PM2.5 exposure among outdoor exercisers in a Chinese setting and were more likely to adopt risk reduction behavior against PM2.5 risks
A Review of Recent Advances in Research on PM2.5 in China - NCBI
They suggested that PM2.5 mass concentration is not related to atmospheric visibility.  studied air pollution in the Jing-Jin-Ji region Of course, turning on anti-haze air conditioners is
Royo 3 Ply Non Woven Custom Medical Health Air Purifying Dust
PM2.5 N95 Dust Mask Fine Air Filter Smoke Custom Dust Non-Medical Mask. $599.99.. 3 Ply Disposable Medical Face Mask High Quality Cotton and Non-woven Filter Cloth TECHGONG China Disposable Non-woven 3ply Face Mask/Disposable respirator. Disposable Printed Non Woven Anti Air Pollution Dust Face.
Stylish Air Pollution Face Masks StyleSEAL Air Masks
Reusable and stylish air pollution masks, filters 99% PM2.5. Fashionable, eco-friendly and comfortable. Kids and adult sizes.