Hey, I’d suggest considering a couple of tweaks. For ventilation, if you don’t have windows, install a small vent or use a portable fan to keep the air moving. On flooring, interlocking foam mats or rubber tiles can cushion shocks and are easy to put down or remove. For equipment, think about space-saving essentials like resistance bands, adjustable dumbbells, and maybe a compact foldable bench—you can often find these affordably second-hand too. Hope this helps!