The last "green" building I worked in, they sealed all the windows. Then it was so tight they kept the internal humidity so low that some of my co-workers lost

The last "green" building I worked in, they sealed all the windows. Then it was so tight they kept the internal humidity so low that some of my co-workers lost their voices and got special dispensation to bring a humidifier into their cubicles. Everybody has been working from home since covid, so who knows what the current status is. I assume they were actually saving energy, but who knows?