[whatevertrevor]

The GP comment is talking about active ventilation though, through an ERV/HRV system. Also the article states this:

> The lifetime of these compounds indoors can be extended via partitioning to the surface reservoir as modulated by ACR. Higher ACR, which may be achieved by opening windows or through mechanical ventilation, leads to shorter t_half_surf because once indoor compounds partition from the surface reservoir to the gas phase as controlled by gas diffusion across the boundary layer, they would be removed from indoor air more quickly before repartitioning to the surface reservoir.

So they do state active ventilation can help, as you reduce the vapor pressure of VOCs allowing them to partition back into the gaseous env, where they can be promptly ejected. How much exactly is hard to ascertain from their graph since I don't have the exact data they used in the plots. But from squinting at it, it seems 1 OOM change in ACR gives you close to 1 OOM change in the VOC half life, which seems substantial to me.

So adding an active ventilation system might be a good idea for this particular concern. Of course it will add to your energy bill.

[jopsen]

Modern ventilation systems, like the one I have will recover a lot of heat, when exchanging air.

[whatevertrevor]

I know, I have one too. It's still energy negative because they're not 100% efficient and you're paying energy to run them in the first place.

Still worth it for better air quality.