A video from a group called Stand Up Michigan making the rounds on social media is the latest to make claims against wearing masks and particularly government mandates to do so.

"If God wanted our nose and mouth to be covered, we wouldn't have been born with a nose that can breathe air in and a mouth that can breathe air out"

— Tammy K. Herrema Clark. Author's note: exhalation and inhalation is mutually possible in both the nose and mouth.

The first six minutes or so it's mainly devoted to Herrema Clark lauding her expertise on the subject of PPE (Personal Protective Gear) going as far as to say "These doctors aren't certified and licensed like I am. They don't know what I know."

What makes her qualified? I watched the 49 minute and 16 second unprepared talk and took notes. Here is everything I captured:

  1. "I do work in the medical field", "I'm an Emergency technologist...I've taught emergency medicine. I'm a strategic partner with the red cross"
  2. "I'm very very familiar with medicine, with body—the biology of our bodies, physiology, I understand virology, immunology, viruses, all of that."
  3. "I've got a lot of medical training. I know the body, I know virology, I know immunology. Um, I know a lot of about the physiology of the body."
  4. "I've worked with attorneys a lot, so I've gotten pretty good at reading legal language."
  5. "I'm not from OSHA, but I'm authorized through OSHA, so the training is the same, it's just that I own my own company. I know what the instructors are looking for."

Let's start by noting Tammy's position on face masks is not in line officially with OSHA:

OSHA generally recommends that employers encourage workers to wear face coverings at work. Face coverings are intended to prevent wearers who have Coronavirus Disease 2019 (COVID-19) without knowing it (i.e., those who are asymptomatic or pre-symptomatic) from spreading potentially infectious respiratory droplets to others. This is known as source control.


Later in the article, I'll show you the brief training involved in holding these certifications and how many of these either do not exist or do not apply to Herrema. She also did not herself cite any experience, nor could we find any from her online portfolio related to "virology, immunology" nor her ability to read legal language other than her claim that she "worked with attorneys a lot."

Her current homepage bears an "Under Construction" placeholder. A cached version of the homepage from Google reveals a previous website pretty well filled out with her background.

The cached page includes three testimonials, two of which are from individuals bearing the same part of her last name, "Herrema"

Regarding Herrema Clark's Credentials

Herrema Clark's LinkedIn profile echoes some of her work experience described in the video. I was unable to find anything that would qualify her as an expert on the body, immunology, or virology as she states multiple times. It would seem the majority of her expertise comes from brief training courses and safety-related work experience in construction companies.

These kinds of trainings are a little more industry involved than the CPR training one would take to be a certified babysitter.

I spoke with a member of the American Society of Safety Professionals (ASSP) who was unable to find anyone matching Herrema Clark's name in the ASSP database.

Herrema Clark is also absent from the Board Certified Safety Professionals (BCSP) database.

But assuming Herrema Clark does have these certifications, what do they mean?

OSHA Authorized Trainer

Here's what I found. An OSHA Authorized Trainer needs to have either five years of construction safety experience, or similar education background, for which she would qualify according to her LinkedIn profile or a 10-30 hour training course. Other than that, she'd need three years experience as an occupational safety and health trainer, and a 40 hour hazardous waste operations and emergency response (HAZWOPER) training course completion certificate. This is the expertise Herrema Clark refers to when she says she is more qualified than doctors on the subject of PPE safety.

Emergency Technologist

As far as I can tell, this is not an actual occupation nor does it make any appearance in her work background. I thought she might have meant to say an "Emergency Medical Technician" which also does not appear in her background. Said individuals typically refer to themselves as "EMTs".

Imagining she were an EMT, According to the National Registry of EMTs, you're required to complete a state-approved Emergency Medical Technician (EMT) course, CPR training, two hour National Registry cognitive (knowledge) exam, and a state approved psychomotor (skills) exams.

Again, we can only assume none of the above applies. As to her claim that she works in the medical field, I found no evidence from her own claims in the video or her thoroughly articulated LinkedIn work history.

Strategic Partner for the American Red Cross

This one may sound medical in nature, but this is more of a corporate volunteer program.

From the two page PDF: "The Strategic Partner Program is an investment in the safety and preparedness of your company, your employees, their families and our community. We provide a corporate engagement activities customized to your needs. Align your company with one of the world’s best brands to educate, engage and ultimately save lives."

She has also alluded to her "numerous degrees" in a LinkedIn thread. We could only find one Bachelor's of Science degree from Ferris State University in Business Administration and Management.

Note a Bachelor's of Science degree in the United States does not denote the degree is necessarily in a scientific field. In the same way my biology degree is a Bachelor's of Arts and I am a nincompoop in the art world.

Tammy doesn't like Doctors

Tammy has some choice words for Doctors, constantly making the case that her background qualifies her more on the subject of hypoxia and hypercapnia caused by masks compared to a doctor.

  • "Nobody that works outside of those fields [OSHA consultants, safety specialists] can understand that information because there is a lot of training." (We're talking HOURS).
  • "These doctors aren't certified and licensed like I am. They don't know what I know. So how can they be the PPE expert?"
  • "How can I possibly explain to you what we're seeing as an authorized OSHA consultant"
  • "When a doctor gets up and says something, a lot of it you have to remember is the pressure that they are under. They are afraid to speak up. They could lose their job if they do. They don't have any choice. They have to go along with the mask requirement. They have to go along with the narrative....I don't work for someone who could fire me." (Plenty of doctors work in private practice by the way).
  • "These are medical experts. They are trained in medicine. They are not PPE experts. They do not understand the science and the testing behind what we are telling them they need to do."
  • "When they get off a bit and they stand up there and tell you you need to mask yourself against this particular pathogen, they have no idea what they are talking about."

Claims about COVID-19

Just about every conspiracy theory led idea about COVID-19 short of 5G towers was brought up in her video. Herrema Clark claims:

  • "It's not nearly as deadly as the flu...there is risk involved in everything....we cannot eliminate risk from our lives."

This is actually not true. So far we're seeing mortality rates anywhere between 0.26% and 1.3%, much higher than influenza.

  • "99% of the people who get it are going to be just fine."

Where to even begin with this one. We're seeing so-called "recovered" victims of COVID-19 developing blod clots, loss of taste and smell, permanent respiratory issues, stroke, and sometimes permanent damage to the brain stem. This is a grossly irresponsible statement.

  • Says the new cases are not new, they are people who had the virus already and already have the antibodies in them, causing the tests to show positive again.

This is evidence of a fundamental misunderstanding of how immunology works, a common mistake confusing antigens and antibodies. This is the kind of mistake a beginner student in an immunology class would make, or one who recently skimmed the Wikipedia article. Cases are also recorded in a database and queued for contract tracing. One cannot simply double their own count by getting a test a second time.

She again points to her baffling credentials to say she understands virology and claims to understand the epidemiology of COVID-19 better than what we're being told today.

  • "I look at that [new case reports] with my background understanding virology, understanding how viruses work, and looking at the correlating hospitalizations, they're not increasing the number of new cases."

Claims about masks

Herrema Clark not only claims masks cause hypercapnia and hypoxia (CO2 poisoning and critically low blood oxygenation), but repeats the urban legend that oxygen, a flammable gas, is pumped into emergency rooms.

  • Explains her position on masks caused her own daughter to avoid it and lost her job as a result: "You all know you can't breathe. You all know you can't feel good." Her daughter was fired because she wouldn't wear a mask and she spoke up about it."
  • "You're not getting enough oxygen and when you exhale that carbon dioxide, you're not able to get it out. So you're really just breathing in CO₂ which causes hypercapnia."

I covered the mask-hypoxia-hypercapnia rumor in another post.

Most of her claims are not about masks in general but N95 respirators which are less commonly used in the public, nor are they relevant to mask mandates which allow for cloth masks. She states "they're handing them out like candy" referring to the N95 mask, which is at the high end of mask pricing and the least commonly available due to the pandemic and the lengthy process to produce.

She is correct in stating the 0.3 μm threshold of the N95 mask and notes the virus is smaller at about 0.1 μm. However, misses that masks are meant to prevent the spread of the relatively enormous respiratory particles which can easily be stopped by even a cloth mask. She also fails to realize O2 and CO2 moleucles are up to 100x smaller than the virus in her claims they are trapped in the mask.

Misunderstanding of HVAC and the oxygenated OR urban legend

For working in construction, I thought she'd at least have a better grasp on HVAC. Yet she quickly confuses air flow and air pressure for oxygen concentration.

She correctly states Operating Rooms (ORs) have a "negative pressure," but this means they contain a higher pressure inside the room than outside to ensure particles generally move outwards from the sterile environment.

She constantly interchanges the words "air flow" for "oxygen flow." This difference is extremely important as oxygen is a flammable gas. When localized oxygen hook ups are installed in an OR, there are strict safety precautions involved to make sure they do not leak any of the flammable gas into the room, where sparks could ignite an explosion. I'm not sure how she missed this in her OSHA safety training.

Herrema Clark uses these claims in an attempt to debunk the many demonstrations by health professionals that wearing a mask all day did not affect their SpO2: "They don't understand they are working in a room with a very precisely controlled O₂ level...O₂...to make up for the fact they're working with a mask. Most medical professionals have no clue."

Enter Bill Gates conspiracy theories

After all this, it should come as no surprise Herrema Clark subscribes to Bill Gates-centered conspiracy theories, including the false claim that Gates owns a patent to SARS-CoV-2 itself.

Bill Gates and the lab targeted by conspiracy theorists
A false coronavirus rumour about The Pirbright Institute led to online abuse and threatening calls.

"Why are we only hearing from one doctor...only one group of professionals. It's not even a varied team. We're hearing from Dr. Fauci and Dr. Birx. That's it. And guess what? That's a total conflict of interest because Dr Fauci is partners and buddies with Bill Gates who has a patent on the Coronavirus..."

Rallies parents to endanger their children

For her grand finale, Herrema calls to the host of her video, an organization called Standup Michigan whose YouTube channel has 16.4K subscribers with a Facebook group tallying 69.1K members.

She announces she has faked a disability and worked with a lawyer to grant legal exemption to her own mask wearing and that of her child's

  • "I do have a medical waiver that I worked with an attorney to create."
  • "Well, what if we're not able to medically tolerate it, because honestly...none of us are unless you're in an OR or hospital setting."
  • "It will indemnify you [someone requiring you to disclose your medical reason] and also allow me to opt out, so it's a good option."

She rallies other parents to do the same stating their employers are not allowed to ask for disclosure of the disability and asks listeners to bombard schools to force them into submission, likening it to her own opposition to vaccine mandates.

  • "If we as a state bombard these schools en masse, they're not going to have a choice."
  • "School bus drivers wearing masks. Yeah, we don't want our school bus drivers getting dizzy and lightheaded."
  • "Money talks. Your kids to them are money."

In another not so suprising surprise, she calls attention to the topic being a strictly Republican matter.

  • "It's only in democratic states that this is happening."
  • "The hard-working moms and dads in America have been so busy burning the candle at both ends for so many years just like I have that we've let them take control. We've given our power away. We've given our freedom away. Now we have one person [not clear who, Gov Whitmer? Dr. Birx maybe?] who is literally controlling every aspect of our lives. And now she is literally mandating that we do something that hurts us....so we need to do this en masse and I'm encouraging everyone to stand up..."

There is some discussion on a LinkedIn post where her video is promoted where at least one observer asked gently about whether she was qualified to talk on the subject and if her political leanings might be getting in the way.

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