How Long Can a Surgical Mask Be Used For?

Just how long can you wear one surgical mask? How often you should replace your mask depends on who you ask. If you ask the WHO, they recommend surgical masks be changed every 4 hours. That could mean multiple masks a day. That’s a lot of masks and a lot … Read more

Can DIY masks filter out viruses and coronavirus

Do DIY Cloth Masks Protect Us From COVID-19?

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 … Read more

pitta masks protect us from coronavirus

Can Japanese Pitta Masks Protect Against Coronavirus?

COVID-19 has caused a surge in interest for all types of masks, including Japanese Pitta masks. Smart Air has received a flood of questions about how well they filter COVID-19 and other viruses. The Japanese Pitta masks are sleek and incredibly popular, but there’s little information available on how well … Read more

Air Purifiers in Dentist Offices for COVID-19 Protection

Air purifiers in dentist offices can help reduce COVID-19 spread and help protect dental patients. This is important as dentist offices may be high-risk areas for COVID-19 and delta variant spread. This article covers COVID-19 protection in dentist offices, including masks and air purifiers as possible means of reducing virus … Read more

Disinfect N95 mask wash alcohol viruses

The Best Way to Clean and Disinfect N95 & KN95 Masks

Covid-19 and the Delta variant 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 … Read more

Do N95 Masks Really Expire?

Can you wear expired face masks? How effective are expired face masks? A study tested 10 year-old 3M N95 masks compared to new masks and this is what they found.

Are double masks better?

Is Wearing Two Masks Better Than One?

The director of the NIH Dr. Anthony Fauci has said it seems like common sense that wearing two masks is better than one. So we decided to test whether two layers of the same material is better than one layer. Note that there may be other benefits of wearing double … Read more

Do N95 Masks limit us breathing of Oxygen Cover

Do N95 Masks Deprive Us of Oxygen?

Wearing masks for hours on end has led some people to worry about whether N95 masks deprive us of oxygen. Scientists have actually made people wear N95 masks and measured their blood oxygen. So we have a solid answer to this question, and it’s not what this question assumes. This … Read more

Smart Air is a social enterprise that creates simple, no-nonsense air purifiers and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.