Florida Glass
 

Put Florida Glass along the bottom. It is opaque vinyl and is attached by removing screen and installing it in place with the same spline used to hold the screen in place.

The upper area can be covered with roll up blinds when needed and the lanai can be hosed out when dusty.

Search Home Depot for Florida Glass.

That sounds like me for 15 years while I avoided it in the spring because of too much pollen, the summer when it is too hot, the winter when it was too chilly. But I sure kept it clean.

Finally, we decided to enclose it. It is now our favorite room.

Thank you, BillDozer!!
 

We brought a roll of Phifer Glas-Shield (Florida Glass) from Home Depot ($49).

We have not installed it yet but looks like an easy job.

It is exactly what we wanted!

Thank you!
 

Thanks for all the suggestions. I appreciate all the replies.