Installing a glass block window with a dryer vent installed. Security, stealth, and convenience.
My window had a fiber board with a hole cut in it for a dryer vent. Duct tape of course. No security. Anyone could come up to it and look in. Not good in semi prohibition land. Newly Recreational legal but so many still against it. And each bill that comes out says something different about medical being able to grow.
The glass block window distorts all view, but can let light in. Has a solid dryer vent for your exhaust. And actually pretty easy to install.
I’ve never done mortar but found it’s very pliable and allows tons of time to fix and smooth it out. Come back in 30 minutes and smooth it out again.
If you have a wood frame it’s even easier. Mine was in a basement.