I assume you are training in your own garage...
Here is what helps me:
1. A large, powerful fan. I use a Patton that I bought at Home Depot about 10 years ago. It can move some serious air.
2. Programming - for me, focusing on two or three exercises at most works well. I have been doing a higher rep routine this summer, but it also worked last summer as well. Longer rest times between sets, but not much other than that.
3. Enough cold water to last the workout - 2L is typically a good number.
4. Sweat rags - drying your face off can help concentration.
5. A lot of chalk.
Hope this helps.
ian