Gerard Hughes

Mastodon @ghhughes@zeroes.ca

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Followers

308

Account age

3 yrs

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🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

How do we know Saccharine and Bitrex Fit testing work and that passing a fit test using them means a fit factor of >100? It's validated against particle count fit testing using comparative trials.
Here's a cool history of the development of Bitrex fit testing by 3M, which was created with the brief to be less pleasant than Saccharine qualitative fit testing, but safer than irritant smoke.
https://

19 views How do we know Saccharine and Bitrex Fit testing work and that passing a fit test using them means a fit factor of >100? It's validated against particle count fit testing using comparative trials. Here's a cool history of the development of Bitrex fit testing by 3M, which was created with the brief to be less pleasant than Saccharine qualitative fit testing, but safer than irritant smoke. https://

Here is one of the censored NIOSH test results pages (for the AirBoss 100) and an example of what the NIOSH test results *should* look like posted by SoftSeal on the website for their N95 masks.
#FOIA #N95 #NIOSH

7 views Here is one of the censored NIOSH test results pages (for the AirBoss 100) and an example of what the NIOSH test results *should* look like posted by SoftSeal on the website for their N95 masks. #FOIA #N95 #NIOSH

Here is the validation study.
Out of 150 fit test pairs, 2 masks passed Bitrex testing that should have failed. 12 masks failed Bitrex testing that should have passed. Saccharin results were identical.

5 views Here is the validation study. Out of 150 fit test pairs, 2 masks passed Bitrex testing that should have failed. 12 masks failed Bitrex testing that should have passed. Saccharin results were identical.

The 3M technical bulletin also confirms a hypothesis of mine as to why the Saccharine fit test solution is 100x as concentrated as the threshold check solution but the Bitrex fit test solution is only 12.5x: because the taste response curve of Bitrex is not linear.

3 views The 3M technical bulletin also confirms a hypothesis of mine as to why the Saccharine fit test solution is 100x as concentrated as the threshold check solution but the Bitrex fit test solution is only 12.5x: because the taste response curve of Bitrex is not linear.

📊 Post engagement

Avg engagement / post

4.2%

Engagement vs followers

Nov 2022

On Mastodon since

🔥 Top post: I requested respirator test data from NIOSH through the Freedom · 41 likes + reposts

📊 Activity & format

Posting cadence

0.25 / week

A lower-frequency account — each post lands with more weight.

Content mix

Mostly text

Recent: 8 text · 4 image · 0 video.

Follower / following

1.6×

Follows 196 back. A more reciprocal / networked account.

Recent posts

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🔥 Top post I requested respirator test data from NIOSH through the Freedom of Information Act. NIOSH censored it. NIOSH wants you to think all approved respirators are the same. They are not. Breathability and filtration levels vary significantly, especially N95s. https://youtu.be/sMtCOQMz… ★ 41

What to do if you can't find a Covid-safe dentist? I retested the Lisa Foreman nose-only ReadiMask hack with a full OSHA fit test. I wore it for over an hour before testing and still passed with the maximum possible N95 mode score of 200+.… ★ 30 NIOSH should post all of the uncensored test reports to their website. The data was generated by the government and is not a trade secret. The public needs it to make informed choices about respirators and respirator policy and regulation.… ★ 26 And here is an example of what the test result documents *should* look like - SoftSeal posted the approval letter & test results for their SoftSeal/AOK Tooling N95 masks on their website. https://www.softsealmask.com/NIOSH-approval-Letter… ★ 5 I requested test reports for all the (then) 15 approved valveless half masks via the CDC's FOIA department. Here is a PDF of the dozens of pages I got from NIOSH with all the numeric results censored. https://archive.org/details/23-00347-f… ★ 8

Here is one of the censored NIOSH test results pages (for the AirBoss 100) and an example of what the NIOSH test results *should* look like posted by SoftSeal on the website for their N95 masks. #FOIA #N95 #NIOSH ★ 7 Bitrex powder is mixed with 5% saline solution in water so that nebulizing the fit test solution will create the same ~2.4 micron sized particles (on average) as Saccharine fit test solution. This explains why Bitrex fit test solution has … ★ 2 Or they are just like every other country, a mixture of giving up because the population is rebelling against covid mitigation and denial that it is a problem. 🤷 ★ 3

The 3M technical bulletin also confirms a hypothesis of mine as to why the Saccharine fit test solution is 100x as concentrated as the threshold check solution but the Bitrex fit test solution is only 12.5x: because the taste response curv… ★ 3

Here is the validation study. Out of 150 fit test pairs, 2 masks passed Bitrex testing that should have failed. 12 masks failed Bitrex testing that should have passed. Saccharin results were identical. ★ 5

How do we know Saccharine and Bitrex Fit testing work and that passing a fit test using them means a fit factor of >100? It's validated against particle count fit testing using comparative trials. Here's a cool history of the development o… ★ 19 I feel that the new Aura double masking study authors should have captured the fit factor data. They have no idea whether the people who subsequently failed their fit test did so by a single point, or by an order of magnitude, or if some i… ★ 4

🐘 Community & instance

Home server

zeroes.ca

Their home server on the fediverse — the instance a creator picks signals the community they belong to.

On Mastodon since

Nov 2022

Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.

👁️Averages 13 views per post.

📤Posts about 0.3× per week.

🛡️ Audience credibility

80/100

Excellent Credibility score

97%

Real Real audience

Low Fake-follower risk

High Data confidence

Est. 97% real, active audience · Low fake-follower risk.
Strong engagement (~4.2% of followers engage each post) — an active, real audience.
Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Science and critical thinking fan. Mask fit testing enthusiast. Not actually a cat. He/him. #fedi22

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🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

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Gerard Hughes

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📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🛡️ Audience credibility

About

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🔀 Audience overlap

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