I watch your show by times and find it very helpful..not so much the show but your knowledge.
Hence the following question:
Do you recoomend the use of kiltz in a commercial building(20-25 units)Family dwellings?
The main reason i ask is the building in this case has all ventilation systems attached(ducting)they are not self sufficant units in the ventilation or plumbing
I have read some info from Cali saying it can and does cause birth defects and in some cases nervous system damage.
Could you recomend a product that would be decent for the allergenic public maybe?