Big Bear Labs U.S. Domestic

The displacement means that’s 1g will displace blank amount. So across the board 10g is 10ml. We overfill a little because there usually is a little left in the bottle/hard to draw every drop.
 
So you have a room with filtered air.

Do you also have a clean room that you use every time to decontaminate yourself before you enter the brew lab? Because filtered air doesn't matter a whole lot when you're tracking crap in every time that you enter.

He doesnt and he doesnt.

He is pretending his lab is under positive air pressure, but will not prove it with pictures.

Furthermore, if he is depending in his externally exhausted hood for pressure... then he is creating a negative vaccum for dirty air to enter.

@BigBearLabs
I do infectious control for a living (I'm also an instructor for medical facilities)
So dint try to bullshit me.

I want to see a READING of your air pressure.

I want to know what GRADE of filtration you use.

I want to see the filters

Have you gotten a laser DOP on your filtration units?
If not, how can you possibly say they work?
 
No the positive pressure pushes everything out of the room not in. That’s the point of using positive. I already told you I’d take a pic on Monday for you. Merv 17
 
No the positive pressure pushes everything out of the room not in. That’s the point of using positive. I already told you I’d take a pic on Monday for you. Merv 17

Why Monday? It's only Thursday...

Oh lemme guess, you can't get to the super secret brew spot before Monday because your bicycle has a flat tire.

Or mom caught you talking on the phone with a girl and now you're grounded until Monday.

Same old feet dragging bullshit every time you come back here. One of the many reasons why you will never be successful.
 
No the positive pressure pushes everything out of the room not in. That’s the point of using positive. I already told you I’d take a pic on Monday for you. Merv 17

Okay
Let me explain this in a way you can understand.
If you have issues I'll include some diagrams from my course material.

NEGATIVE air pressure is to contain a contaminant INSIDE an enclosure.
It pulls fresh air from the external environment and filters it before it leaves the enclosure.
This is used to allow only fresh air to leave the enclosure, because we are not worried about external contamination.

Qhen you are preventing EXTERNAL contamination, you need positive air pressure.
(Think PAPR, positive air purifying respirstor)
The air handling and filtration unit pulls air in through a filter.
It creates a positive air envelop within your kab/enclosure.

This ensures all air entering is clean and scrubbed.
No UNFILTERED air can possibly enter the enclosure before it is scrubbed.

Therefor you cannot have external contamination.

Let's do a summary

Negative air pressure = Keep bad things in.
Positive air pressure = Keep bad things out.

Imagine having a Bio contamination mask/helmet that is under negative air pressure.

I'd have been dead a long time ago.
My helmets are POSITIVE air to prevent me dying.

Do you understand?

Here is a picture or two

First is a NEGATIVE air pressure I used for a minor bio hazard

Second is a PAPR helmet for another minor biohazard

So theres my proof that I'm NOT retarded and I know what I'm talking about.

If you still doubt me
I can go take my pictures of my certificates that were issues by a Ministry official here in Canada.
Showing that I am a government regulated Hazmat Instructor/Supervisor

I've proven that I know what I'm talking about

YOI FUCKING DO NOT

So shut up and fuxking listen

Son

20180530_093848.jpg 20200820_180254.jpg
 
When entering a positive air pressure room, the air exits the room not enter it so it doesn’t cause an issue. Maybe we are misunderstanding each other but a positive air pressure room is much easier to set up which is also why they’re used for surgical rooms and microchips
 
When entering a positive air pressure room, the air exits the room not enter it so it doesn’t cause an issue. Maybe we are misunderstanding each other but a positive air pressure room is much easier to set up which is also why they’re used for surgical rooms and microchips

That's literally what I said
And those are also, literally what I build.

So
What type of filtration do you use?

You asked WHY you would use positive air pressure.

the same reason we use PAP rooms for surgeries and the same reason I build them for immuno compromised patients.

Preventing exterior contamination
 
It’s from camfil it’s the equivalent to a merv 17

I don't understand the use of a high rated MERV filter for your application.

Why are you focusing on a filter that targets bio/fume/chem
When your oil solutions contain Ba?

Especially if you have laminar flow over your work area?

Why didnt you go with HEPA? floaters and particulate matter is the enemy for finished oils.
A floater particle can cause an abscess, micro biological issues would be eliminated and sterilized when coming into contact with BA

I'm not sure I follow your reasoning here
 
It’s .3microns so it’s essentially the same as having a huge filtered room like that which the oil goes through. If it works for the brew it’ll work for room. We did our best to make a room as close to a clean room as we could. Positive air pressure system and high level of filtration. I didn’t have the luxury of someone’s expertise beyond an HVAC guy under false pretenses.
 
No one has been out at risk nor would we do that. I have proven time and again that we would do things correctly. We moved from presterilized bottles only once we could ensure that it could be done with sterility.
 
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