Once you know how the hydrogen perxoide works for you, you can then posts how well it helps...I might be able to try Bromine, for chlorine it's mostly the smell that affects me and I'll have a screened in patio room with a hanging ceiling fan off center so that it's not directly above the tub...and also the screened in room to keep little neighborhood children away and for more privacy...won't be dancing the gallows gig in a tub...
For most people, bromine is worse than chlorine.
For Nature2 to work without chlorine, you have to use a lot of MPS. Again, people find that irritating.
The ACE system with Hot Spring generates natural chlorine and many other cleaners, such as ozone and active oxygen. People find the water softer.
The Clear Ray system that Sundance and Jacuzzi sell requires the use of chlorine.
Bottom line, most likely there is a system that would work for you. Others to consider might be BaquaSpa, a 100% chlorine/bromine free system and Silk Balance water conditioner.