@kurth

But the theory is , if they're close to sealing, then when you inhale, the added pressure causes them to seal better. If they're not even close, but open in places, then the air just passes at that point, the place of least resistance.

Just watch 3M videos on masks sealing check.

@kurth

Almost all masks and one time use respirators without silicon padding can't be sealed, no matter that you do.

Even ones with silicon don't seal for around 50-70% of people, it the reason why all half and full masks come in 3 sizes. Even even for half mask of proper size 10-20% do not seal properly due to specifics of your face.

https://www.bhphotovideo.com/c/product/1559533-REG/gerimedix_13_188_disposable_3_ply_isolation_facemasks.html

@ Vitaliy Is this mask OK to buy? Any link to buy half face, full face or mask still working?

use kn95 chinese knockoffs at your own risk ...... https://www.zerohedge.com/health/good-masks-are-critical-how-do-you-find-them

Pritzker arranging secret flights from China to bring millions of masks and gloves to Illinois

Gov. J.B. Pritzker is planning to obtain millions of masks and gloves from China and bring those supplies back to Illinois on charter jets — but he’s keeping the details secret out of fear the Trump administration might seize the cargo for the federal stockpile, sources said Tuesday.

Illinois state Comptroller Susana Mendoza said Tuesday that the state has spent more than $174 million on purchases related to COVID-19, including supplies such as ventilators, masks, gloves, gowns, protective eyewear and hand sanitizer.

Among the list of expenditures: two invoices, each for $888,275, to FedEx Trade Networks Transport for “aircraft charter flight to Shanghai, China for COVID-19 response. ... Prepayment required.”

“The supply chain has been likened to the wild West, and once you have purchased supplies, ensuring they get to the state is another herculean feat. These flights are carrying millions of masks and gloves our workers need. They’re scheduled to land in Illinois in the coming weeks and the state is working to ensure these much needed supplies are protected and ready for distribution around the state.”

A source knowledgeable about the flights said the governor didn’t want to release details “because we’ve heard reports of Trump trying to take PPE in China and when it gets to the United States.”

https://chicago.suntimes.com/coronavirus/2020/4/14/21221459/pritzker-secret-flights-china-illinois-ppe-trump-coronavirus

According to the Department of Health and Human Services, 95 percent of surgical masks and 70 percent of respirators used in the US are made overseas, and China is one of the biggest producers.

Note that second part is possible only with big bribes and also involved changing many laws to significantly lower prepareness to chemical and biological attack.

In reality you needed 3 full face masks per each citizen (2-3 half masks and around 40-50 long time use filters). ALl stored in special goverment storage.

China’s Export Restrictions Strand Medical Goods U.S. Needs to Fight Coronavirus, State Department Says: Products made by 3M, Owens & Minor, PerkinElmer sit in warehouses; GE ventilator production line in Wisconsin nearly brought to a halt.

New Chinese export restrictions have left American companies’ U.S.-bound face masks, test kits and other medical equipment urgently needed to fight the coronavirus stranded, according to businesses and U.S. diplomatic memos.

Large quantities of critical protective gear and other medical goods are sitting in warehouses across China unable to receive necessary official clearances, said some suppliers and brokers.

Asked about the complaints of export problems, Foreign Ministry spokesman Zhao Lijian told reporters in Beijing on Wednesday that China wants to ensure the quality of exported medical products given their importance. “Countries across the world are all hunting for medical supplies, causing a big challenge for China’s efforts of quality control and regulation of export,” the Chinese Embassy in Washington said.

China is an almost irreplaceable supplier, making more than 40% of the world’s imports of masks, gloves, goggles, visors and medical garments, according to the Peterson Institute for International Economics.

Suppliers said the urgent demand has created a “complete sellers’ market,” with prices changing daily as factories, inundated by offers, dictate minimum purchasing quantities and buying conditions.

“China’s between a rock and a hard place,” said Solomon Matzner, the Shanghai-based founding partner of BioAktive Specialty Products who assists U.S. and German institutions in sourcing KN95 masks. “They need to get as much product out as possible, but on the other hand, Chinese products are being criticized for quality.”

Forget about quality, just ship them!

WASHINGTON (Reuters) - The United States has asked China to revise new export quality control rules for protective equipment needed in the coronavirus outbreak so they are not an obstacle to timely supplies, a spokesman for the U.S. State Department said.

China tightened restrictions on exports of masks and other personal protective equipment (PPE) a week ago, calling for shipments to be subjected to a mandatory customs inspection.

The move followed highly publicized complaints from some governments and hospitals that they received PPE from China that they considered faulty.

“We appreciate the efforts to ensure quality control. But we do not want this to serve as an obstacle for the timely export of important supplies,” a State Department spokesman said late on Thursday.

great video

@kurth

No one talks about "post WWII", I am talking about Wild Wild West :-)

Your issue is that you barely know real China.