Spraying never gets everything and adds humidity to the works. Sulfur Vaporizer gets all surfaces and adds no humidity.
Strong fans do not "spread mold"... lol... They reduce the relative humidity and make it difficult for the mold to grow. When RH gets below 40%, the mold will start to die on it's own. Dehydrate the air and don't use burning sulfur on ANY flowers. YUCK, YUCK, YUCK, YUCK!!!!!! SMOKE! SULFUR SMOKE!! YUCK!
some of these wives-tales and myths are crazy.. I laugh my ballz off... That sulfur smoke will make your flowers taste REAL fuckn nasty. YUCK!
#1 and #2 rule in combating mold; keep fans on your plants to prevent stagnation and reduce humidity, and keep the temps between 70f-85f (high for co2), and RH below 40%.
Lower temps than 70f and a lack of a strong fan will almost ALWAYS cause mold. Don't burn sulfur, yuck.. you can't prevent mold by a lack of a strong fan unless the air is SUPER dry (<30% RH).. I've never heard ANYONE tell me that a fan is bad for mold because it will spread it LOLOLOL.. funny.... Almost always, a lack of a strong fan will make the RH skyrocket to mold growing potential.
Spores are everywhere and they will grow on anything that will give them food. You cannot be sterile from ANY mold spores in the natural environment. (unless you made a mega-million dollar "clean-room" with particle filtration down to <1micron.)