Misting the air is not about killing airbornes as much as it is about knocking them out of the air. And yes pet dander is a big issue. But I disagree that a laminar flow hood is gonna solve your issues automatically. They are a great tool, I own one, don't use it in cheese making and it currently resides in my storage unit. But hey if you want to spend 350 plus and have that big thing hanging around, cool. A commercial cheese making facility perhaps should have one most artisan cheese makers do not, commercial or otherwise. I guess my point is that throwing money at a problem doesn't necessarily make it go away. When I was in micro class there were some people that could make sterile transfers and some that couldn't, it was my second time sitting through a micro class, and truthfully I was amazed that anyone could do sterile work in that lab, it was messy and open to students all day with little or no monitoring. The first time was a micro class for medical lab techs, taught by medical lab techs, and second day we were working with pathogens. That first class gave me my technique, the second expanded my knowledge but technique was never emphasized as a priority, oh the perils of a liberal arts education. Sorry if I sounded preachy, not my intent, just don't know that this is the route to solve your problem. Good luck. Sailor, sorry for hijacking your thread.
John