I’ve been dealing with a fairly minor medical issue but it was one that required a procedure that could not wait for the Corona virus to run its course in the US. So I had to travel across state lines on a six hour road trip and stay in a hotel for four days, not an ideal thing but unavoidable. Also for 14 days prior to the trip I had to self quarantine to protect the health care workers at the hospital. It did not matter that I live in an area that is nearly covid19 free and the hospital is in a Corona hotspot. But I did not mind the extra precautions at all, we owe our health care heroes all the protection we can provide. However what I saw in my four days in and out of various hospital buildings on their campus did surprise me.
And it was all about the masks. Because I knew I’d have to wear a mask when I was being shuttled around the medical facility for four days I took one with me. I happened to have had a couple of the n95 certified masks at home. One I had bought years ago for use in dusty off-road trail rides and another was given to me by a friend who had a suppressed immune system for a few years and had one left over. He found out I was headed out of state and dropped one off with my wife.
If you aren’t up on all the particular ratings of masks the n95 is the Cadillac of masks, it blocks 95% of 0.3 micron and larger particles. That’s good enough to significantly protect you from the droplets of contagion that an infected person is constantly putting into the air around them. It also protects others from you fairly well. The next most common mask you see in medical settings is a surgical mask. It looks a lot like a n95 but it does not filter out small particles nearly as well. It is primarily designed to prevent the person wearing the mask from spraying droplets out and infecting others. It does not do much to protect the person who wears it from infection. It isn’t useless as far as protection goes but it isn’t very effective. The third common masks are the cloth masks, many homemade. These are the least effective in both protecting others from you and in protecting you from others, but they do cut down some on the amount of droplets containing virus that you might otherwise breathe, sneeze or cough out into your neighbor’s airspace.
I have some familiarity with masks and respirators because as a chemical engineer and former plant firefighter I worked with all levels of breathing protection. I used everything from supplied air self contained breathing apparatus gear to n95 masks because we sometimes had to enter areas with unsafe levels of smoke or toxic dust.
What many people do not realize is that all masks are uncomfortable and all of them restrict your ability to breathe to some degree. In the summer they are crazy hot on your face and it feels like you are rebreathing the same air over and over. For people with asthma, like me, some of the more efficient masks, like the supplied air type (where you carry your own air tank on your back) and the n95 are not feasible to wear. Unless you have good lung capacity the extra restriction n95 and higher rated masks impose on your breathing ranges from highly annoying to dangerous.
I did not fully realize that until I walked to my first appointment yesterday wearing the n95. After all it had been decades since I had worn one on the job so I really did not remember much about the experience. The first question the nurse asked me was if I always looked so flushed? The answer is no, in fact I run 15 miles a week and play high level tennis. I do have some breathing difficulties but I’ve offset those with my endurance training. However, add just a little more restriction to my ability to breathe with a n95 mask and I became absolutely miserable.
And maybe you would toss that off to my particular condition but as I walked the medical center campus I noticed that every person in the facility was wearing the same kind of mask. And it wasn’t an n95 like mine. I finally asked a nurse practitioner about it and she said that almost nobody could stand working in an n95 unless they were in direct contact with covid19 patients and had no other choice. Instead they all wore surgical masks as did all the patients they were caring for, like me, that were non-virus cases. They segregated the hospital into covid19 and non-covid19 areas and only the people on shift in the Corona virus areas had to wear the n95’s, which they universally detested due to how annoying they felt. She gave me and my wife a couple of the more comfortable surgical masks, and while I still hate how it feels to wear one, at least I can get enough air to function.
I don’t know the statistics but my guess is that very few medical professionals are wearing n95 masks while they work now. And it may not have much to do with a shortage of masks. Instead it may be due to the huge human factors issue involved in wearing them. I can’t imagine a nurse on a 12 hour shift having one of those things on their face the entire time. I’m claustrophobic anyway and when every breath I take starts with me rebreathing my own hot breath I’m creeped out in a major way. If you wear glasses you also face the fact that the mask fogs up your glasses any time you breathe hard. Oh, and since the masks make you breathe hard that means you are looking at the world in a fog pretty much all the time.
If you’ve got some n95’s stored away you just might want to try to see if you can make it for even three or four hours straight wearing one. I’m guessing there is a fair chance you’ll be climbing the walls after thirty minutes. If that is the case then consider donating the unused ones to those who have to wear them and just get a cloth mask for home use, or make your own. Maybe one positive outcome from this pandemic will be the fact that health officials will realize that having respiratory protection that degrades people’s ability to function at a high level is not satisfactory. There is a need to develop an effective mask or filter system that health workers (like my APN) do not consider highly annoying. Otherwise they are going to opt down to a much less effective level of protection. Which is exactly what I’ve witnessed all week. Because protection that prevents someone from doing their job isn’t much protection at all.
Maybe I’m just crazy, but have you tried an n95 mask or a surgical mask for multiple hours of continuous wear? Could you stand it?
Any medical professionals who will tell what criteria they are using to select the type of mask they are using on the job?
Is anybody working 12 hour shifts wearing an n95 mask? Is it no big deal or are you on the verge of insanity?