Day 18

• To those who still wear their mask below the nose ... less time to potty train a toddler (@MommyGearest)

Day 24

• Simple ways to improve air quality in the classroom (@ARISense_AQ)

• Simplified and idealized airflow in a classroom using a floor-mounted CR (@healthyheating)

Day 16

• IAQ 'merit badges' (@ughberta)

Day 13

• Face masks are safe

Day 12

• Swiss cheese model of COVID-19 prevention (for Colorado) (@CDPHE)

Day 11

• Eating meals outside (Spanish) (@ventilandoAND)

• Mask safety (treat like underwear) (@HoppySaul)

Day 4

• Swiss cheese respiratory virus pandemic defence (v4.3) (@MackayIM)

Day 1

• Tips to Improve Indoor Ventilation in K-12 Schools to Help Reduce COVID-19 Transmission (@JHSPH_CHS)

Day 30

• N95 #FitandFilter (@deejcane)

Day 29

• Plot showing filter efficiency vs particle size vs MERV rating ((source?))

Day 28

• Graphic about aerosols, risk, and CO2 concentration (Zero COVID Thailand)

• Virosol infographics for airborne aerosol education (pt 1) (@ChiaWang8)

• Virosol infographics for airborne aerosol education (pt 2) (@ChiaWang8)

• Virosol infographics for airborne aerosol education (pt 3) (@ChiaWang8)

Day 25

• #N95Now - Release the Respirators (@deejcane)

Day 24

• Thread with links to videos from #DeltaSchoolsAirborne event (@joaquinlife)

Day 21

• Pee in pool, hot tub analogy of school lunch indoors (w/ Drs. Poppendieck, Huffman) (@marwa_zaatari)

Day 12

• Summary page on masks (esp. for kids) (Sama, Bauer, Lindberg (UMass-Lowell))

Day 10

• My mask protects you, your mask protects me (@DrEmilySomers)

Day 2

• Five ways to fight an airborne virus (@KashPrime)

Day 22

• Ilustration of how to make the DIY Corsi-Rosenthal filter box (@ughberta)

Day 14

• Risk reduction flowchart for airborne COVID decisions (w/ video) (@SergioCoscolin)

Day 7

• Summary of 3 infection routes/mechanisms (@linseymarr)

Day 27

• Summary of safer activities after vaccination (CDC)

Day 18

• Hot tub pee analogy (@marwa_zaatari & @Poppendieck)

Day 13

• Overview of airborne risk reduction (@OSVentilator)

Day 12

• Risk reduction flowchart for airborne COVID decisions (@SergioCoscolin)

Day 19

• Distance, masks, HEPA filtration, ventilationin schools (CDC)

Day 11

• One-page summary of ventilation guidelines & explanation (@lastmileworks)

Day 19

• 1893 quote: Don't share your air. Rebreathed fraction of air as indicated by CO2 measurements is a risk factor for respiratory disease transmission. (@davidElfstrom)

Day 10

• Infographic on mask fit & quality (@CPita3)

• Cartoon about mask fit & quality (@linseymarr )

Day 9

• (French) infographic on airborne transmission reach schools, and support our work on #CO2 sensors (@Cote_Science)

Day 8

• Pages from children's book on airborne transmission (@abstorylab)

Day 4

• (sarcastic) Flow chart of CDC decision tree for 'airborne' spread (@CPita3)

Day 22

• Hands, Face, Space, Replace Christmas ornaments (@hughes_eilir)

Day 13

• Short, silient infographic video on ventilation + (@WelshGovernment)

Day 10

• Hands, Face, Space, Replace (@hughes_eilir)

Day 7

• The invisible friend at Christmas (@JoanQueralt)

Day 3

• • Visual tips for safe holiday plans (Univ. College Cork)

Day 23

• How can you make the air in your home safer from SARS-CoV-2 (Center for Health Security)

• Info video on holiday/family gatherings (Sanidad Gobcan)

Day 22

• The four COVID personality types (masks) (@Pechkehabt)

Day 21

• Your bubble is bigger than you think (@ResolveTSL)

Day 18

• Hands, Face, Space, and Ventilate (video) (UK Government)

Day 6

• Hands, Face, Space, and Ventilate (video) (UK Government)

Day 3

• See how location, proximity and time can help you make safer choices when you're in an area of widespread (WHO Animation)

Day 30

• • Mask visualization (NY Times)

  • Infographics on masks (CDC)

  • Visualizing superspreading events with R0 (Science Magazine)

Day 24

• Swiss cheese respiratory virus pandemic defence (v3) (@MackayIM)

Day 15

• Swiss cheese respiratory virus pandemic defence (v2) (@MackayIM)

Day 8

• Stop the superspreading to stop the pandemic (@KoenSwinkels)

Day 6

• Comparison of set of most recent 4 sets of CDC guidelines (@HuffmanLabDU)

Day 5

• Swiss cheese analogy of layered prevention (v1) (@sketchplanator)

Day 1

• Infographic showing various exposure pathways of SARS-CoV-2 (@MackayIM)

Day 29

• Spitball spaceships! as a cartoon analogy for covid aerosols (@mdholte)

Day 21

• Horton hears an aerosolized virus (@HuffmanLabDU)

Day 17

• The difference between droplet and airborne transmission

Day 11

• How not to wear a mask (pictures) (@Surgeon_General)

Day 10

• • Ventilation and filtration flow-chart (Yale School of Public Health)

  • Relative risk (odds ratio) of various common activities (Fisher et al.)

Day 4

• When to wear a mask: chart (CDC)

Day 31

• Interventions for aerosol transmission of COVID-19 (@linseymarr)

Day 26

• "A CIViC DUTY" acronym posters (@jljcolorado)

• Aerosol trasnmission infographic summarized by Kim Prather (@jesch30)

Day 25

• Risk of SARS-CoV-2 transmission in different settings (@trishgreenhalgh)

Day 6

• Keeping arts safe at school (NFHS)

Day 5

• • Aerosol transmission infographic (Jimenez) (@jljcolorado)

  • Aerosol transmission infographic (Prather) (@kprather88)

Day 24

• Infographic on mask fit (@WearingisCaring)

• COVI-19 guidance for school buildings (REHVA)

Day 22

• Video: A simple family reunion can bring a gift of forty days in a coma or even death (Gobierno de Canarias)

Day 14

• Variety of Back to Work Posters (American Industrial Hygiene Association)

Day 6

• Coronavirus risk activities (informationisbeautiful)

Day 16

• COVID acronym (clean, observe, ventilate, increase, don) (Kettering General Hospital)

Day 27

• Masks reduce airborne transmission (@kprather88)

Day 18

• Reducing risk of coronavirus transmission (@EpiEllie & @JuliaLMarcus)

Day 29

• Masks/urine cartoon

Day 29

• Avoid the three C's (@JPN_PMO)

Day 30

• Toilet poop virus aerosol (@linseymarr)