040320CalMattersSeniorsBy Julie Cart, CalMatters

The Centers for Disease Control and Prevention on Friday recommended every American wear a face mask while in public to protect against contracting coronavirus. 

The agency announced that non-medical fabric masks – even scarves or bandannas – could help slow the spread of the infection. State health officials earlier in the week made the same recommendation. 

The ever-evolving response to the coronavirus pandemic has amped up the need for keeping everyone safe from the virus.

That means wearing masks.

(Image: Food bank volunteer Betty Kimmel wears a protective mask as she hands out oranges to seniors at Teamsters 315 Hall in Martinez on March 19, 2020. Photo by Anne Wernikoff for CalMatters)

What is the purpose of a face mask?

It depends on who is wearing it.

Humans have long covered their faces to ward off disease, and medical masks have a long and colorful history .

For most of the public and some healthcare workers, “the main purpose of a mask is not to protect yourself from others, but to protect others from you,” said Bill Padula, an assistant professor at the University of Southern California’s School of Pharmacy.

Padula, who studies patient and worker safety in hospitals, said medical masks are designed to protect the wearer from contact with an infected patient.

“It isn’t simply thinking about what I have to do for this patient sitting in front of me, but ‘How do I treat this patient, with respect to the next  10 patients who walk into this clinic?’” he said.

In its new guidelines set Friday, the CDC said studies have shown that “a significant portion” of people with the virus have no symptoms and can still spread the virus. “In light of this new evidence, CDC recommends wearing cloth face coverings in public settings where other social distancing measures are difficult to maintain (e.g., grocery stores and pharmacies) especially in areas of significant community-based transmission.”

Which masks are in short supply?

The highly-contagious coronavirus requires doctors, nurses and other clinicians to take extra precautions when treating patients. With more than 1 million people worldwide infected, there is a critical shortage of N95 masks and surgical masks — the types worn by healthcare providers.

The N95 respirator mask is a polymer cup designed to fit snugly to the face to form a seal, and filters out nearly 95% of airborne particles. The federal government suggests they not be reused or shared.

In contrast, surgical masks are made with multi-layered fabric, commonly pleated, with bands that hook over ears, and are worn loosely. They are designed to provide a physical barrier that prevents the spread of germs from person to person.

They also are not intended to be used more than once.

But in both cases, hospital officials in hard-hit cities such as New York have rationed the masks and are washing and reusing them.

The situation is made worse by the fact that about half of the world’s supply of medical masks is manufactured in China, with many of the factories located in Wuhan, thought to be the epicenter of the coronavirus outbreak.

What about other types of masks, will they work?

In many fire-prone communities around California, homeowners and local community emergency agencies maintain stocks of masks intended to protect the wearer from wildfire smoke.

Some of these are known as P95 masks, often recommended by fire officials for use by residents during wildfires. The masks — sometimes referred to as dust masks — are fitted with a small carbon filter, designed to protect against oil-based particles.

They work well in many applications, but are not considered medical-grade masks and are “not commensurate with current U.S. standards of care,” according to the Centers for Disease Control and Prevention. 

Federal guidelines go on to say, however, that P95 masks, alone or in combination with other measures, are acceptable when there are shortages of N95 respirators. “These devices are expected to be suitable alternatives to provide protection during the COVID-19 response when supplies are short,” the CDC guidelines say. 

The guidelines do not say why P95 masks, which block the same percentage of particles as the others, do not meet federal standards for health care workers. It is likely that they have not been fully studied to ensure that their filtration ability, seal and other factors meet the needs of hospitals, since they were not designed for that use.

How about donating those wildfire masks to hospitals and local clinics?

Napa City Council Member Liz Alessio organized a local donation drive that gleaned some 45,000 masks, the bulk of them surgical masks but some from people’s stocks of P95 masks.

The region’s vulnerability to wildfire meant that “folks had masks in their homes and businesses,” Allesio said. “There’s a lot more out there.”

Health care officials are most appreciative.

“We are humbled by the outpouring of support we have received from our communities and business partners to help source additional supplies,” healthcare HMO Kaiser Permanente said in a statement to CalMatters.

But the company said it was organizing a donation network and discouraged people from bringing donations directly to medical centers.

The California Department of Public Health told CalMatters that while the P95 fire masks are “highly effective,”  it is “up to the individual medical institution to decide if they are acceptable for use by personnel.”

At least one hospital told Allesio that it would not be able to use the donated P95 masks because they didn’t meet the hospital’s requirements. 

Medical masks are regulated by the Centers for Disease Control and Prevention, the National Institute for Occupational Safety and Health and the federal Occupational Safety and Health Administration.

The state launched a website where individuals and companies can donate or sell scarce medical supplies, including masks. The site specifically mentions N95 and surgical masks only.

Ok, what are the rest of us supposed to do?

Before this week, officials downplayed the need for most people to wear masks when they are out in public, provided they practice appropriate physical distancing. Then, as it became more clear that there are unknown numbers of asymptomatic people officials are now urging everyone to use face coverings, as well as remain at least six feet apart.

There is a wide variety and many gradations of face masks anyone can use, including rudimentary paper dust masks, often used for home DIY projects.

Barbara Ferrer, director of the Los Angeles County Public Health Department, said that for most people, a homemade mask using tightly woven cotton fabric, a bandanna or scarf affords sufficient protection.

“There really is no need for anyone in the public to go and secure N95 masks, I beg you not to,” she said.  “They are needed by medical workers or health care workers.”

CalMatters.org is a nonprofit, nonpartisan media venture explaining California policies and politics.

Pin it

NorCal News

  • classroom 2093743 640
    March 05, 2021

    Santa Rosa Public Schools Plan Return To Classrooms April 1

    Santa Rosa’s public school district and its teacher's union have agreed on a plan for getting kids back into classrooms on April 1. The tentative deal includes schedules, safety protocols and a timeline for teachers to access both​ doses of the vaccine before they return to in-person instruction.…
  • covid 19 4960254 1280
    March 03, 2021

    Inching closer to the red tier

    Since August, Sonoma County’s been stuck in the state’s most restrictive tier in terms of COVID-19 recovery. But the possibility of opening up the economy a bit more is finally possible. Sonoma’s one of four Bay Area counties still in the purple tier, according to state guidelines. But because…
  • IMG 7516 2
    March 02, 2021

    Santa Rosa Clears a Large Homeless Encampment

    Dozens of people living in Santa Rosa’s largest homeless encampment were forced to pack up and leave Tuesday morning. It marks Santa Rosas’s second encampment clearance in the past week. Activists showed up before sunrise to protest the clearing of Santa Rosa’s biggest homeless encampment on…
  • syringe 5882594 1280
    February 26, 2021

    County Postpones Vaccine Appointments Due to Scarcity

    Next week, Sonoma County is suspending all first dose vaccine appointments due to supply shortage. But the county will keep second dose appointments for both the Moderna and Pfizer-BioNTech vaccines. Sonoma County has been allocated 7,680 doses for next week, five percent fewer than this week. This…
  • vaccine 5873170 1920
    February 24, 2021

    The County is Nervous about Blue Shield's Vaccine Takeover

    On March 7, Blue Shield of California will start administering Sonoma County’s vaccine rollout. The nonprofit insurer will take over the data collection and decide how many doses each provider receives. They’ll also streamline the sign-up process, making most appointments available through…
  • vaccine 5895477 1280
    February 19, 2021

    County Shifts Vaccine Priority to 65 and Up and Food Workers

    On Monday, residents 65 and older, along with food manufacturing, grocery store and restaurant workers will be eligible for a vaccine at one of the county-supported clinics. Prioritization will be given to those with server illnesses, such as cancer or kidney disease. The decision to expand…
  • vaccine 5926664 1280
    Feb 17, 2021

    The County Still Faces a Vaccine Shortage

    Two months into Sonoma County’s vaccine rollout, 19% of the adult population has received at least one dose. The county is keeping up with other Bay…
  • vaccine 4946480 640
    Feb 10, 2021

    The County Reaches for More Vaccine Data

    Officials say Sonoma is administering vaccine doses at a faster rate than similarly sized counties. On February 10, officials announced the county…
  • final 4896425 640
    Feb 09, 2021

    The County Compromises on Eviction Limitations

    On February 9, Sonoma’s Board of Supervisors voted to place more limitations on evictions during COVID-19. The amendment limits evictions to extreme…
  • Feb 06, 2021

    Sonoma County Extends Stay-At-Home Order

    State public health officials have extended a Stay-Home Order for the 11-county Bay Area region, including Sonoma County. The move comes as COVID-19…
  • vaccine 5873170 1280
    Feb 03, 2021

    The County Promises an Equitable Vaccine Rollout

    Earlier this week Sonoma County reaffirmed its commitment to vaccinate the oldest seniors first, those 75 and older. Younger seniors were told to be…
  • corona 5174671 640
    Feb 03, 2021

    What We Need to Know: COVID in Sonoma County

    What are the current county restrictions? Sonoma County is currently in the most restrictive purple tier of the California’s Blueprint for a Safer…
  • Nurses protesting outside of Sutter Santa Rosa Regional Hospital. Photo courtesy of the California Nurses Association.
    Jan 31, 2021

    Santa Rosa Nurses Demand Safe Staffing

    UPDATE: Earlier this week California’s Department of Public Health halted the staffing waivers. The State says they will not accept any new…
  • injection 5722329 1920
    Jan 27, 2021

    Sonoma County Opens its First Clinic for Oldest Seniors

    Sonoma County is following the state’s guidance to prioritize seniors ages 75 and up in its vaccine rollout. While there’s progress and hope in the…
  • Student doing homeowork.
    Jan 21, 2021

    County Strategizes Reopening Schools

    Covid-19 is rampant in Sonoma County and spreading faster than ever, which means kids are still stuck at home. While vaccines are being rolled out,…
  • pbs
    Jan 13, 2021

    PBS Employee Makes Controversial Statements on Hidden Camera

    Julian Wyllie of CURRENT news reports in a story entitled "PBS Distances Itself from Former Staff Attorney Ensnared in Project Veritas Sting," that…

NorCal News Radio

Northern California
Public Media Newsletter

Get the latest updates on programs and events.