The OSHA max for a 40 hour week is 5000 ppm.
Air levels for carbon dioxide that indicate that indoor air quality may be a problem have been established by the American Society of Heating, Refrigerating and Air-conditioning Engineers (ASHRAE). Above 1,000 ppm of carbon dioxide, ASHRAE recommends adjustment of the buildings ventilation system (ASHRAE, 1989).
I saw that. Did you see the part where passenger comfort and decreased disease transmission in the enclosed space of a fully loaded 737 REQUIRES less than 1000ppm of CO2? Evidently not.
OSHA recommendations for building air quality are not adequate for enclosed airplanes, and the article plainly states that. You don't want to accept the truth, and refuse to believe that only your own information is valid. Try reading the entire article, and the conclusions CAREFULLY.
Until you do, post to somebody else. Maybe they'll fall for your viewpoints. I no long have any interest in them.