Yes, I know the problem well.
Surely - a tidy terrarium is the first to have! Everyone knows it.
A part of my feeding items are chicks - and sometimes I loose my last friends in my family.
Mainly I work with a window fan - but the outlet is in a public area...
I worked with an electric air cleaner with charcoal - but the results were only minimal. Wasted money!
I worked with an electric air washer - quite good results. But the chemicals are not really cheap. All 2-3 days you have to refill the water, all 10-14 days a complete clean of the washing box. The humidity in the room increased a little bit. Maybe good for the snakes - but too for mites. Since I had a mite problem in last years I stopped the regulary airwashing.
An other good method is surely an air ionisator. I own no ionisator but this will be my next aquisition. Smelling particles are electric bound to dust and fall down (sorry, my technical english has (too) some hiatuses)
By the way, I speak about the piles of 100 halfgrown and adult Pituophis.
All the best
Bernd
www.pinesnake.de