PAPRs (powered air purifiying respirators) would be far more effective and efficient, especially on a long-term basis. People who are at risk of becoming severe

PAPRs (powered air purifiying respirators) would be far more effective and efficient, especially on a long-term basis. People who are at risk of becoming severely ill from a respiratory infection (i.e. Pneumovax 23 recipients), especially in the developed world, should be able to have their national/public/private health insurance pay for a PAPR. After the pandemic, this really should be the case. There are also more compact, more convenient, and better designed PAPRs coming out, such as the Optrel Swiss Air [1] and the CleanSpace Halo [2]. Most PAPRs do not require fit tests to ensure the seal, while N95/N99/P100 masks do. The PAPRs I list can easily be adapted, either formally or informally, to have source control (covering of the exhaust valves). [1] Optrel Swiss Air: https://industrial.optrel.com/fileadmin/optrel/redaktion/pdf/en/productflyers/swiss-air-folder4S-en.pdf https://industrial.optrel.com/fileadmin/optrel/redaktion/pdf... [2] CleanSpace Halo: https://cleanspacetechnology.com/wp-content/uploads/2019/11/2-CleanSpace-Halo-Training-Notes_June2018-V1.pdf https://cleanspacetechnology.com/wp-content/uploads/2019/11/...