Beijing Air Quality – Live Beijing, China AQI and PM2.5 Readings Beijing PM2.5 air quality averaged 34.2 micrograms in 2021. This means Beijing PM2.5 concentrations exceeded the WHO annual limit of 5.0 micrograms by a little under 7 times. On the most polluted day, Beijing air quality exceeded the recommended …
Mask standards can be confusing: N95, KN95, FFP1, FFP2, P2, or surgical mask? This quick run-down of mask specifications covers mask types, mask ratings, and their effectiveness at filtering particles. First off, let’s start with mask types (or certification types). In general, there are 3 types of commonly used, disposable …
Data shows that improving indoor ventilation can reduce the risk of virus transmission, and is recommended by the CDC. In this article, we’ll cover the ASHRAE recommended air changes per hour for offices, homes, schools, residential and hospitals, using the ASHRAE 62.1 and 62.2 guidelines. ASHRAE Recommended Air Changes Per …
Covid-19 has led to a new surge in interest of how to clean and disinfect masks. Google searches for “wash N95 mask” and “wash KN95 mask” have sky-rocketed. Yet data-backed answers seem to be in short supply. The standard guidelines say to throw masks out and use new ones. I.e. …
3M has been selling air conditioner (AC) filters that can be added to the inlet of ACs for some time now. 3M markets them as being simple and easy to attach, and a great way to reduce PM2.5 in homes without an air purifier. But do they actually work? How …
Poor indoor air quality is a common in homes and offices around the world. Poor air quality can affect the health, mood and productivity of those indoors. Here are three different ways to improve indoor air quality, and the advantages of each. Indoor Air Quality Overview: Before we get to …
Current Anglesey Air Quality Anglesey, Wales PM2.5 air quality averaged 5.7 micrograms in 2021. This means Anglesey, Wales PM2.5 concentrations just exceeded the WHO annual limit of 5 micrograms by 14%. On the most polluted day, air quality exceeded the recommended limit by a little under 6 times. Current Air …
Current Kuala Lumpur City Air Quality Kuala Lumpur PM2.5 air quality averaged 15.24 micrograms in 2021. This means Kuala Lumpur PM2.5 concentrations exceeded the WHO annual limits of 5 micrograms by over 3 times. On the most polluted day, air quality exceeded the recommended limit by over 6 times. Current …
Air purifiers with UV lights are becoming more and more popular to disinfect viruses such as COVID-19. UV light technology including far-uv, far-uvc, and UVGI are advertised to kill 99.9% of viruses. But are UV light air purifiers actually able to protect you against COVID-19 and other viruses? How UV …
DIY cloth masks to protect against viruses sounds like a crazy idea. Data shows masks work incredibly well, and they’re also really cheap. Surgical masks cost a few pennies, and they’re capable of filtering out 80% of particles down to 0.007 microns (14 times smaller than COVID-19). However, the COVID-19 …
