Data compiled by the world health organization (WHO) shows that poor ventilation can lead to an increase in virus transmission. As such, improving ventilation indoors should be considered an important step in reducing the spread of viruses such as COVID-19. This article covers three simple steps to improve indoor ventilation and lower the risk of […]
Author: Paddy Robertson
Paddy is the CEO of Smart Air, running operations from Beijing. He has a Masters in aeronautical engineering from Bristol University, UK having specialised in aerodynamics. An advocate for open data, free information and transparent business, he spends his spare time promoting honest business and social enterprise.
Indian Winters are up to Three Times More Polluted Than Summer
Just like many other countries in the world, winter season in India brings with it a wave of air pollution. Those living in India are accustomed to heaving to breathe through thick blankets of smog. Many resort to using air purifiers at home and wearing masks while outdoors. But just how bad is the pollution […]
How Long can the Coronavirus Survive on HEPA Filters?
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 […]
Dyson’s Pure Cool Air Purifier Has a Terrible Clean Air Rating | Review
Dyson’s Pure Cool Air Purifier looks impressive. However a review of its clean air rating (CADR) reveals it does a poor job of providing clean air – the TP05 Air Purifier’s CADR comes in at just 164m3/hr. In that case, the Dyson Pure Cool air purifier puts out as much clean air as a $20 […]
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, […]
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 […]
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