Other than Sanuvox, can anyone recommend other manufacturers?
Sure I can search but that doesn't tell me if what I find are good units. Would also tell me the quality of the unit my HVAC contractor might want to sell me.
Google "Freshairuv.com" This is the primary group that I have used over the years. Great factory support.
Honeywell is decent. Beware that there is a lot of crap out there. All UV is not created equal. Some online companies are trying to pass off the fish tank uv crap for air purification If a websites makes their UV product sound like the second coming of Jesus, beware. UV is not the entire answer. It is part of the solution in a group of means to a better end.
Good luck to you.
Settle down! If you were that important, the city would give you lights and a siren for your car
Another important issue is whether the company is going to be in business 5 yrs from now and have replacement bulbs and ballasts. LOTS of trendy devices come into the market and then disappear later once it gets saturated. I always like name brand companies like Honeywell, Lennox, Carrier, Trane as they have parts for 20 yrs. Some of the others are hopeful at best.
"Cut it twice and it is still too short".