They don't prevent covid. Everyone gets covid. Just like everyone gets the common cold, with or without a mask. Even if they worked for a time, it wouldn't be i

They don't prevent covid. Everyone gets covid. Just like everyone gets the common cold, with or without a mask. Even if they worked for a time, it wouldn't be ideal to wear them permanently, as your quality of life would be permanently degraded and your natural immunity deficit would continue to grow to the point that ordinary diseases would seriously harm you.