Plywood also uses glue: * https://www.greenhomeguide.com/askapro/question/i-m-concerned-about-toxic-offgassing-from-osb-subflooring-and-roofing-are-safer-produ

Plywood also uses glue: * https://www.greenhomeguide.com/askapro/question/i-m-concerned-about-toxic-offgassing-from-osb-subflooring-and-roofing-are-safer-products-available https://www.greenhomeguide.com/askapro/question/i-m-concerne... * https://greenhomeguide.com/askapro/question/we-have-osb-that-says-it-doesn-t-use-urea-formaldehyde-but-it-still-has-a-strong-odor-i-am-wondering-if-it-is-safe https://greenhomeguide.com/askapro/question/we-have-osb-that... Unless you're using planks for siding and your flooring, you're going to have to use some kind of glued product product. Further your OSB is generally behind your drywall (sheet rock, gypsum) which can act as an air barrier. Ideally you should have an HRV/ERV that exchanges the air in your dwelling constantly.