Air purifiers with HEPA filters are highly effective at filtering out viruses such as the COVID-19 coronavirus. But viruses can remain on surfaces for scarily long periods of time. When thinking about viruses stuck in an air purifier’s HEPA filters, that sounds scary. It’s also led to incredible-sounding headlines about how long viruses last. But […]
Category: Coronavirus
The latest info and practical tips on protecting yourself from the Covid19 coronavirus. Information and open-data covering: N95 masks, surgical masks, DIY and homemade masks, air purifiers and disinfecting and washing masks.
Recent Coronavirus Articles:
Can Opening Windows & Doors Reduce COVID-19 Transmission?
Data shows that having good indoor ventilation can reduce the chance of virus transmission. Armed with that knowledge, can something as simple as opening a window be effective solution to fighting COVID-19 and reducing virus transmission indoors? Recommended Air Changes Per Hour Before we can say how effective opening windows really is, we […]
Can HEPA Filters Release Dirty Particles Back Into the Air?
HEPA filters are great at filtering particles such as dust, PM2.5 and PM10. They also do an incredible job of capturing nanoparticles including viruses and bacteria. What HEPA filters don’t do though, is destroy the particles. This has lead to a lot of marketing hype and confused air breathers. Some companies claim they have superior […]
These are the Recommended Ventilation Rates for Offices, Homes, Schools and Shops
Data shows that improving indoor ventilation can reduce the risk of virus transmission, and is recommended by the CDC. But to what level of ventilation is ‘acceptable’ or ‘safe’. How much should it be increased by? In this article, we’ll cover the recommended ventilation rates for offices, homes, schools and hospitals. Recommended Room Ventilation Rates […]
How to Increase the Dose Your UV Light Can Deliver
In the other article‘Common UV Lights Aren’t Great at Killing COVID-19’, we explained how much doses do we need to kill coronavirus. Also, we talked about how UV-C light kills the virus. Also, the UV light we can find in the market is too weak to kill the coronavirus. So, if we can’t purchase super […]
What is UV Light and How Does it Kill Viruses?
UV light, or ‘ultraviolet light’, is a form of non-visible electromagnetic light. The main source of UV is the sun. There are three types of UV light: UV-A, UV-B, and UV-C. They’re differentiated by the wavelength of the light, with UV-A light has the largest wavelength, ranging from 315-400nm. UV-C light has the shortest wavelength, […]
Common UV Lights Aren’t Great at Killing COVID-19
UV light has surfaced as a potential solution for destroying the coronavirus and other viruses alike, but are common UV lights strong enough to be effective? How much of a dose do we need? We took a careful look at the data and came up with practical guidelines. Using UV Light to Destroy […]
Poor Ventilation May Lead to Higher Virus Infection Rates
Offices and the workplace can be breeding grounds for viruses such as COVID-19. In this article, we’ll present data that shows how improving office ventilation and airflow may lower the spread of viruses like the coronavirus in the workplace. Evidence of how Office Ventilation Affects Disease and Virus Transmission There’s little evidence directly linking good […]
The Three Coolest, Most Breathable Surgical Masks for the Summer
Recently, the Coronavirus has begun to sweep Beijing again. Among so many surgical masks, how should we choose which brand surgical mask to wear, not only against with virus but also away from sweating. Our Smart Air tested 10 surgical masks that were purchased from different pharmacies and come up a summary with analysis. I […]
The Riskiest Environment for COVID-19 is Right in Front of You
Cases analysis data from China suggests that by far the riskiest environment for COVID-19 is where most people are right now. We probed the data on where the riskiest places are to catch COVID-19 and where should we be taking the most caution. People have jumped on practical solutions like washing hands and […]
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