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Is HEPA enough for clean meds these days?

Hydro-Soil

Active member
Veteran
I've run into way too many meds that obviously need their intake air filtered... even some that should have their intake moved away from the neighbor's dryer vent (Fabric softener chemical warfare, yummy!).

In light of the nature of the particles floating in the air these days, the question arises... what's the smallest particle size that can have a radioactive isotope rider on it?


Regardless of what your beliefs are towards Japan currently... Spill your guts on what you know about particles and HEPA or other filtration methods. We all want to know what you do, yes? :artist:

Keep in mind that we all have grows of varying sizes so if there are any variants you can think of, please feel free to include them.

:thank you:

Stay Safe! :jump:
 

grow101

Member
HEPA won't hold back atoms (Iodine, Strontium, Caesium, size in ~200-400 pico meter), but only larger structures, like molecules in (~120) nano meter (1nm=1000pm) scale for the even better filter system ULPA. Carbon-dioxide and Oxygen are smaller than those radioactive isotopes and obviously they have to pass through the filter.
 

61-50-7

Member
Unless you live in a location with a nuclear spill nearby radioactivity should be pretty low on your list of worries. Especially when you consider there isn't a damn thing you can do about it anyway. In the winter filtration isn't needed in most locations, except for a few exceptions like l.a. or denver air is pretty clean no? Outside air is typically way cleaner than indoor air anyway. So if you have a problem it's coming from your space or your neighbors if you live in a multiply unit building.

So long as you don't live in a dust bowl you're fine. In the summer I'd worry about bugs but in the winter in a dust free area (vast majority of locations) filtration won't protect your meds from anything because the air is clean.

Are there even better alternatives than a hepa?
 

Aerohead

space gardener
Veteran
As far as growing goes hepa filtration is super expensive because it quickly reduces airflow and new filters are very pricey. It's really tough to get rapid airflow through them. If you had unlimited funds and could swap out the filter weekly, go for it... A more cost effective approach would be an an ionizer, they work very well if you put them in a box that gives the air a little hang time before entering the room. They don't clog and reduce airflow so once you get the intake dialed, it doesn't change the intake CFM.

When using hepa style filters, the air intake constantly looses flow until the filter is swapped creating an ever changing growroom envronment.... No thanks!!
 

Hydro-Soil

Active member
Veteran
As far as growing goes hepa filtration is super expensive because it quickly reduces airflow and new filters are very pricey. It's really tough to get rapid airflow through them. If you had unlimited funds and could swap out the filter weekly, go for it... !

Ummm... where the heck are you getting your information?? Wow. What you say would be true in a ridiculously high dust level area. There are a lot of HEPA filters available that have extremely high flow-through rates. Besides it is quite simple to put a couple cheap filters in front of your HEPA filter and change them out as they collect the larger particles.


I've noticed a definite metallic salt taste on the wind for the last several weeks. I can now taste the same thing in the meds around here when I smoke them.

Nice to see the 23 reports of radioactive isotopes in our drinking water and milk.... A MONTH after the readings were taken.

Are you people serious in believing this would be the first time the govt has lied to you about something affecting your life? LOL

Stay Safe! :blowbubbles:
 

CatManDoo

Member
hepa

hepa

I've typically seen Hepa filters rated at .3 microns. By the way, that's the same filtration rating as Tyvek that we wrap houses with...
 
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