First image is a screenshot of a tweet from username luckytran. The tweet reads; "According to the latest CDC COVID -19 wastewater data, we are currently in the second biggest surge of the pandemic. It will peak in the next week, with ~2 million infections per day. During this surge, ~100 million people total (~1 in 3 people in the US) will likely get COVID."
Under the image is a graph of COVID wastewater levels in the US. The x axis is cut off, but the chart shows an early spike in viral activity, several smaller spikes, and at the left end of the chart, viral rises again beyond the level of the smaller spikes.
An infographic about COVID precautions, beginning with an overview of masks. N95 is labeled best. KN95 and KF95 are labeled better. Surgical mask under cloth mask are labeled good, with a caption under that says "Or double masking. Do not layer surgical masks. Surgical mask is labeled fair. Cloth mask is labeled least effective.
The infographic continues with a diagram titled "Layers to Reduce COVID Transmission." They are numbered. One; improving air quality. Two; wearing well fitting and high quality masks. Three; Increasing physical distance and decreasing time around others. 4; reducing time spent close to others indoors. 5; limiting exposures. 6; getting vaccinated and boosted. 7; COVID testing.
A section at the bottom of the infographic provides advice on improving indoor air quality. It is a bulleted list. The first bullet says "Open windows for increased ventilation. Ideally, open windows on different walls for cross ventilation." The second says, "Indoor air quality can be improved with portable air purifying units with HEPA filters, or more affordable homemade versions of these, such as Corsi-Rosenthal boxes. *" The third bullet says "Outdoors is the best ventilation!"