SHEMA97 face mask assessment

2/1/21: Looking into the effectiveness of this popular face mask seen on TV with sports figures.

Wrong Approach: This is the text accompanying this good looking mask. Maybe good for dust, but not liquid droplets.

“HelmetFitting.com’s SHEMA97 Functional Active Mask uses nano fabric technology to protect the respiratory system from harmful substances and infectious sources. The micro dust proof fabric helps prevent the inhalation of airborne dust and potential virus-laden particles with a 97.1% fine dust filter rate. Its special purpose fabric filters particles down to one micron for superior protection.

Error: The virus is not dust. It is not a dry substance. It does not travel alone. It travels in water droplet which easily goes through this mask.

Proof it for yourself. Put the mask on and place a mirror in front of the mask. Cough. You will see the moisture on the surface of the mirror.

Then put some tap water on the outside of the mask and inhale with your mouth open. You will sense the water come into your mouth.

Good for dust. Not likely good for virus.

Picture of Dr Lanny

Dr Lanny

Medical doctor, concluded his clinical practice of orthopedic surgery so more time for research and development in cartilage healing. As an orthopedic surgeon he was one of the pioneers in arthroscopic surgery. He has published scientific articles and textbooks, as well as lecturing internationally. His present avocation resulted from a period of incapacity following rotator cuff surgery after which he spend time doing one hand putting. This lead to interest in design of putters and a study of PGA tour player's putting. This resulted in publishing "There is More to Putting than Meets the Eye" with his now friend and partner former PGA tour player, Howard Twitty. He holds more than 40 US patents related to medicine and more than 20 in golf. The most notable to date in medicine is the motorized instrumentation for arthroscopic surgery. In golf, the IP most likely to have an impact is a novel golf grip that enhances the players performance. His Christian up bringing influence remains the focus of his life. He has written several manuscripts, one of which is "A Physician looks at Scriptural Healing." Because of his many diverse interests, he is often asked, "What are you up to now?" The purpose of this BLOG is to regularly answer that question.
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