You'll want something more like a coffee filter type material for filtering, but paper towels can work in a pinch combined with wire mesh. Also, oil oxidizes when exposed to air, so don't just leave it uncovered in the fryer. Cover with a lid or store in a sealed container. We do industrial...
No fryer is going to help with splatter/fumes, its just the nature of the beast. A hood/vent is your only relief for fumes, and get a lid/splatter guard if you can. For oil quality, you'll want to filter it out when done and clean all the crumbs out from the fryer. You'll lose some oil due to...
Couldn't find any websites that would commit to giving an actual number for above ground pools. Too many factors apparently. I did find that a lot of sites tossed out a 7% max value increase for an in ground pool in Florida.
Gnats or fruit flies? Either way, both are usually sustained by standing water, as they need it to lay eggs. This includes your drains. Look up apple vinegar traps, can make your own or buy some, and pour some soap down all your drains.