Air Purifiers in Dental Office for COVID-19 Protection

Using air purifiers in dental offices can help reduce COVID-19 spread and help protect dental patients.  This is important as dental offices may be high-risk places for COVID-19 spread and infection. During a dental operation or surgery, patients must remove their mask, and airborne particles and aerosols in the clinic … 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 … 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

Which Way Round Should a Surgical Face Mask Go?

Surgical masks are designed to be worn in one direction only. However, it can be difficult to know which way round a medical face mask should go. Should the blue side face out, or in? Some surgical masks are white all over, which way round should these white face 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

N95 versus KN95 Mask Difference Standards

What’s the Difference Between N95 and KN95 Masks?

With such similar sounding names, it can be confusing to understand the difference between N95 and KN95 masks. What are KN95 masks, and are they the same as N95 masks? This handy chart explains the differences between N95 and KN95 masks (and all characteristics that are the same). N95 vs. KN95 … Read more

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