Covid is still a threat, and there are many long covid sufferers. We should reinstate mask mandates in healthcare settings; ensure free high quality masks and PCR tests; and mandate effective air filtration for all public transportation, buildings, and businesses.
Masks keep bacteria (dirty air) recirculating in the nose and mouth of mask wearers.
You want clean air? Start with an immediate moratorium on geo-engineering and cloud seeding programs, essentially medical experiments on all of us that pollute the air we breathe with heavy metals while violating the Nuremberg Code requirements of informed consent.