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

N95 vs P2 Masks

What’s the Difference Between N95 and P2 Masks?

The difference between N95 and P2 masks is so small that most users will not notice anything amiss. The P2 rating is the standard in Australia and New Zealand similar to the US N95 mask rating.   Difference Between N95 and P2 Masks: Charted Out N95 and P2 masks look …

Read more

Half of Masks Failed N95 Tests and are not Reliable

Half of Chinese N95 Masks Fail Quality Checks

Tests of masks marketed as N95 from 21 manufacturers show that half of Chinese N95 masks fail quality tests–with some masks filtering no better than a cotton cloth. These tests come at a time that many countries around the world are scrambling for masks and other PPE. Factories Spring Up …

Read more

How to Source Reliable and Tested N95 KN95 Masks

How to Find Reliable N95 Mask Suppliers

After testing 31 masks from 19 suppliers in China, we discovered that almost half of the masks were not meeting the N95 standards for filtering particles. What’s more, out of the 17 masks that did meet the N95 standard, most of these broke when we tried some simple structural tests. …

Read more

N95 Masks Made From Plastic

What Are N95 Masks Made From?

N95 masks made from synthetic plastic fibers are most common. These plastic fibers are similar to the fibers in synthetic and polyester shirts many people wear. N95 Masks Made From Synthetic Plastic For example, let’s take the 3M 9332 masks that I wear in Beijing. Technically this is an N99 (FFP3) …

Read more

Size of pollen particles 10 microns to 200 microns cherry willow pine grass pollen feature

Can Masks Filter Pollen and Prevent Hay Fever?

Every year, spring’s blossoms bring with them wave of pollen. For places like Beijing, it’s also the start of the ‘snowy season’, with the hundreds of willow trees producing their fluffy catkin friends and the sniffles that follow. But how can we avoid the uncomfortable coughing and sneezing? Which masks …

Read more

Sanitizing Masks With Alcohol Degrades Performance

With mask shortages during the coronavirus outbreak, some doctors are sanitizing masks with alcohol so they can re-use them. But this raises questions about whether alcohol actually works and whether it degrades the masks.   Does Alcohol Kill Viruses? The research on alcohol is clear. Alcohol kills viruses. Technically, viruses aren’t …

Read more

Microwave time and power to kill HIV hepatitis viruses clean cover

Does Microwaving Masks Disinfect Viruses?

With masks in short supply, many people are being forced to re-use masks. That means the idea of microwaving masks has gone from a crazy-sounding idea to a critically practical question. Does Microwaving Masks Deactivate The Coronavirus? Another reason this question is critical: Smart Air tests found that washing N95 …

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.