You don't know me very well......I've been growing cannabis for over 45 years now. I
ran over 10 acres of commercial greenhouses in/after college to pay for college. I then was hired by a major US pharmaceutical company to run the whole Yew farm operation to make Taxol...Just to get a grip on how big that was. At one point we had 24,000,000 plants in various stages of growth. That area, covered square miles!
I grew up on a farm, and now in retirement. Run that farm and manage 4 more that created a now 5 farm organic co-op that supplies Produce, Dairy, Beef, Pork, Poultry and now moving the grain ops to Barley and Wheat for organic brewing for use in the two major brewing cities in our state. One has been given the national title of "Brew city USA". We are now expanding into more Hops area's for the same reason.
Outside air is never "toxic" to cannabis.....I grow some outside every year for my personal stash and Christmas gifts...... You make me laugh kid. My "out side air is BAD".....ROTHFLMAO!
I have one of the tightest environmentally controlled grow operations in the area.
All incoming air is HEPA filtered. The op is set up for gassing by CO2 generator(did you know they (mostly) are REALLY portable hot water makers for camping? - Yup, that's where the designs were stole from) I later choose NOT to gas.
Before I wrote this post.....Conditions were set for - Temps of 73 deg F at the therm. level. 45% RH and all strains dialed in on that. Night temp drops are normal... Everything is controlled by environmental controllers with fuzzy logic.
Here's last remaining pic of one 12x24 production room.
View attachment 4315885
That is a "support" the central AC system portable that is online for several months a year.
Each light now has a 400w Merc vapor under it, for added blue and UVB spectral bands. The inside the hood lamps are 1K HPS in Jupiter 6 hoods that deliver 20% more light. They are set at 6ft centers to overlap for one continuous lighting zone of high intensity light delivery -
NO WEAK ZONES!
I have no real issues other then in the first building, and then in only one room. I made the dumb ass mistake of not sanitizing before I moved the operation in.... Chalk it up to being too damn excited to move in the new building....
Next thing is "jr".....That you carry spores into any facility that does not have a "blow off" area and shoe cleaning station.....Like a chick breeding poultry operation....They are everywhere. They only need the right conditions to actually start growing....
They got that in mine, this last spring when a storm caused a power failure in our area... Understand power failure now?
I was polite here.....
I won't be next time.
Oh yeah, I grow 4 different types of wine grapes for my own wine making.... I got root aphids once, some years back.....I traced that down to the wild grapes giving it to my wine grapes and then to my indoor opp.....There are NO MORE wild grapes within 200 meters of my farm.. I go out every year and kill off any new ones..
Now that's prevention.