Study of Various Vaporizer Brands....

ReggieB

Well-Known Member
It's a start and it's definitely interesting but as @fubar has stated, limited and artificial, it's only really quantifying a couple of things, content in vs content out. Obviously in a real world situation the end user will use the vaporisers in a completely different manner to the test (and to anyone else).

I'm also a little bit confused with the testing, did they attempt to run a specific volume of air through the vapes or run them until there is no more vapour, if it's the latter, they should all be as efficient as each other, if it's the former then that could possibly be construed as misleading as it's not representative of how they would be used?
 

CarolKing

Singer of songs and a vapor connoisseur
@Spocks_Katra i have the Air as well as the Enano and suffer from nerve, muscle and joint paint in my back and feet. I have a medical certification for cannabis.

I use the Enano and my Solo most of the time at home and didn't find the Air medicated any better than the Nano. I prefer the taste of the Enano to the Air. The Air can be harsh for me unless I use the lowest heat or I'm using a Vortex stem. The Vortex stem is a great mouthpiece for the Air IMO. The Air is an awesome unit. Sometimes it's personal preference and that's OK.

I save my Air mostly for on the go. The Vortex stem isn't ideal for on the go though.
 

Spocks_Katra

Well-Known Member
@Spocks_Katra i have the Air as well as the Enano and suffer from nerve, muscle and joint paint in my back and feet. I have a medical certification for cannabis.

I use the Enano and my Solo most of the time at home and didn't find the Air medicated any better than the Nano. I prefer the taste of the Enano to the Air. The Air can be harsh for me unless I use the lowest heat or I'm using a Vortex stem. The Vortex stem is a great mouthpiece for the Air IMO. The Air is an awesome unit. Sometimes it's personal preference and that's OK.

I save my Air mostly for on the go. The Vortex stem isn't ideal for on the go though.

I have neuropathy in my hands knees and feet that sometimes shoots up my arms and legs, from a genetic disease that also damages my kidneys and heart and can cause stroke. one of my more recent symptoms ive developed in the fast few years is that my hands shake a lot when im trying to make small or precise movements, so sometimes when im using my nano, my hand will flinch or shake and the stem will hit the metal heater pretty hard, I dont want to break the stems, and I cant hold them still enough to get as good effects as out of my air, but I agree its all preference
 

luchiano

Well-Known Member
Speaking as a career biomedical scientist (160+ papers) The methods used are all very good but not necessarily ideal - eg continuous mechanical ventilation is a convenient but hardly representative way to generate an air flow in a vaporiser.

tl;dr under this necessarily artificial and limited but objective and repeatable testing, the solo stands out in efficiency from 3 other popular vaporisers.
I don't think I'm misleading anyone when I conclude that from reading the paper, but to be on the safe side, I look forward to empirical evidence that the statement is false - and when I see that, I'll change my views.
Man, posts like yours is why I love surfing on FC!

My post, in this thread, was a more simple way of describing what you posted. Once you take into account the airflow rate, absorption of the thc/cbd will be much different in each vaporizer. That is the more important way to choose the most efficient vaporizer. Your method of taking the test the subjects blood for thc can help find who took in more cannabinoids from what vaporizer is a good one?
I'm pretty sure I vape more than most biomedical scientists @fubar but I respect both your & @Spocks_Katra opinions. All I was saying is that I can use the solo or nano all day & still be functional, that's a lot harder to do with the Evo or Volcano. I've done it but it's harder. I think I'm qualified to give an unscientific opinion because I own them all, but it's just an opinion.
If I'm reading your post right, are you saying the desktop vaporizers hit you more, and therefore, makes it harder to function throughout the day. While the solo allows for a nice, and easily maintained high, throughout the day?
 

luchiano

Well-Known Member
@ReggieB

In theory, they would all equal in quality extraction, but because some vaporizers have better temperature control then others, even though the temperature may read 210c, because the heater isn't heating up the air to proper temperature, less thc/cbd will be extracted. The vapor may stop, but there will still be more thc/cbd left to be released, the vaporizer just needs time heat up the air to proper temperature. This is why temperature stability during inhale, along with how much air is coming into the heating chamber, should be the main focus on a vaporizer, if its convection. In my opinion!

The mighty, and crafty, vaporizers do this. I don't think other portables do it. With desktops, the Aromed, and the volcano, are the only ones that do it, I think.
 
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fubar

Ancient and opiniated inhaler
Once you take into account the airflow rate, absorption of the thc/cbd will be much different in each vaporizer

Maybe.
That's exactly why we need to measure what we can in replicate experiments that others can reproduce. That way we can share data supporting models likely to be more "truthy" than any single individual's subjective experience. The solo was efficient for me and my use of it from day 1, but other people (other than the usual suspects on the forum) might not see it that way. In the paper, it was outstanding for whatever they tested - complete extraction on a solo at 7 I guess - so that makes me even more confident that the solo rocks more generally than just for me.

There are more or less infinitely more layers of complexity we can try to add to the experiment - better convection models such as the pattern an experienced user exhibits; different amounts (they used 0.05g which is fine but I often use more like 0.1g on a domed screen); different %THC inputs (they used 5% THC weed - hardly worth stealing from the lab I guess...); domed screens (!); whatever;

Point is, this is much better than much of the cannabis science I've seen so gives us all hope that we'll see more of it. Forums are good for crowd sourcing subjective experience but without measurements, even hotly contested views can only be supported by opinion.
 
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ReggieB

Well-Known Member
I also hope it encourages more studies across the board, I'm interested in the medical side of things, I have a couple of medical conditions that may be treatable and a few friends with their own issues, real information is hard to come by that isn't anecdotal or at least that's how it feels.
 

luchiano

Well-Known Member
Maybe.
That's exactly why we need to measure what we can in replicate experiments that others can reproduce. That way we can share data supporting models likely to be more "truthy" than any single individual's subjective experience. The solo was efficient for me and my use of it from day 1, but other people (other than the usual suspects on the forum) might not see it that way. In the paper, it was outstanding for whatever they tested - complete extraction on a solo at 7 I guess - so that makes me even more confident that the solo rocks more generally than just for me.

There are more or less infinitely more layers of complexity we can try to add to the experiment - better convection models such as the pattern an experienced user exhibits; different amounts (they used 0.05g which is fine but I often use more like 0.1g on a domed screen); different %THC inputs (they used 5% THC weed - hardly worth stealing from the lab I guess...); domed screens (!); whatever;

Point is, this is much better than much of the cannabis science I've seen so gives us all hope that we'll see more of it. Forums are good for crowd sourcing subjective experience but without measurements, even hotly contested views can only be supported by opinion.
No doubt!

To me that's why using forums as a place to throw around ideas, until most agree on one thing, is the best to start what, and how, testing should be done. It all starts with the idea, and the creative one at that. My dream would be a forum with hardcore herb heads, who are so logical, that different ideas can be critiqued, and fully understood, without any subjective emotions getting involved. Probably wont happen, we are humans, right?

Being that cannabis is about to be the new "it" thing, because of law changes, if we spread common ideas, we can give the scientists the theories we want to test out. Our input would make the test more "real", and not just data, therefore giving a more accurate result then just using hard numbers.
 

Poostuff

Please delete
If I'm reading your post right, are you saying the desktop vaporizers hit you more, and therefore, makes it harder to function throughout the day. While the solo allows for a nice, and easily maintained high, throughout the day?
Yes that's correct, also if I was self medicating for pain or insomnia I'd use a desktop. During times I like to be more functional I'd use a good portable like the Solo. I was waiting for someone to mention CBD & THC, is that where you're going?
 
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luchiano

Well-Known Member
Yes that's correct, also if I was self medicating for pain or insomnia I'd use a desktop. During times I like to be more functional I'd use a good portable like the Solo. I was waiting for someone to mention CBD & THC, is that where you're going?
Yeah.

To me it sounds like the evo, and volcano, is giving you more actives absorption. Now, this isn't necessarily a bad thing. Based on the designs of the volcano, and evo, it would be hard to get a concentrated vapor off of a similar amount of herb used in the solo, because they allow mouch more air to mix with the vapor. Again, this isn't necessarily a bad thing. Because the design of the solo, it allows a quicker absorption of thc, its just that you may not get as much thc as with the other two vapes, with each puff. So, depending on your needs, all three vapes are efficient.

I think vaporizers should be put into categories based on the users needs. And from that, competition should begin. THE RACE IS IN EVERYTHING:D
 

fubar

Ancient and opiniated inhaler
It really comes down to how well a particular vape and user get along. On paper its one thing but at the end of the session its what the user gets out of the vape that counts.
Amen to that.
@ataxian normally points that out but he might be asleep at this hour.
But surely that does not mean we should stop trying to learn more about the science involved? That's the way users can make informed choices and manufacturers can make better vaporisers.
 

CarolKing

Singer of songs and a vapor connoisseur
I know the study was pertaining to the DaVinci portable vaporizer, I have the Ascent by DaVinci.

It is from the fall when they started selling them in 2013 so mine is over 2 years old. It still is working fine but I've had air leaks from the beginning. I sent one unit back right away because of air leaks and a cracked glass oven. I received a replacement in Oct of 2013. I still had air leaks.

I have compensated for the air leaks by using the GonG and using an o-ring. I also use a glass spacer because the oven is so large. The oven drops temp when you take a draw so the glass spacer serves 2 purposes.

I would be curious how that vaporizer would rate in their study. @OF used a temp gage to see how the oven loses heat in the Ascent after a draw. It takes a while for the heater to recover.
 
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Stevenski

Enter the Dragon
There is a lot of high quality thought provoking posts in this thread :2c:. I take a bit of everyones opinion/position & then form my own after assessing what has been presented/discussed. It may be the wrong opinion ultimately but it will be mine at least & my opinion can be changed with the presentation of substantiated facts.

I am no expert but as a long term cannabis consumer my Air rocks me in a very big way. I vaped .1 an hour ago & can barely string this post together & the weed is not great by any stretch.

I'd really like to see Arizer give us back the pass through option. The Air would be a beast on a PA!

That makes me wish I had purchased an early edition Solo & yes the Air on mains would be a little ripper.

Agreed with Fubar, I actually like my air over my nano a lot of the time. I just use my nano a lot because its quick and easy

Really? I am about to pull the trigger on a UD but I figure the Air has to be quicker & easier than a log to use?
 

Alan Partridge

Smell my cheese
"Devices such as Volcano Medic® and Plenty Vaporizer®providing rather cold vapor for a mild, less airways-irritating inhalation revealed a smaller recovery of cannabinoids in the vapor compared to Arizer Solo®. However, this device, designed to release a maximum amount of cannabinoids into the vapor and lacking a cooling tube, produces a rather hot vapor, which may be less tolerated by patients."

So effective cooling means a drop in efficiency- which we kinda knew all along right? Also that 'lost' THC can be reclaimed.

I wonder what effect water tools have on those percentages?
 

Nesta

Well-Known Member
@srama21 mentioned that the reference section of this study was "gold." Here's an excerpt from London's Provincial Medical Journal, dated 1843, titled "On the Preparations of the Indian Hemp, or Gunjah" (I never knew where the term ganja came from!):

"On the 6th of November 1838, one grain of the resin of hemp was administered in solution, at 2pm, to each of these three patients.
At 4pm, it was reported that one was becoming very talkative, was singing songs, calling loudly for an extra supply of food and declaring himself in perfect health…”
 

420engineer

Well-Known Member
delivery is as important as extraction, and imo, an unrestricted draw is going to deliver better than something tight, even if it extracts at a higher percentile
 
420engineer,

TboneToker

Well-Known Member
@ReggieB

... This is why temperature stability during inhale, along with how much air is coming into the heating chamber, should be the main focus on a vaporizer, if its convection. In my opinion!

The mighty, and crafty, vaporizers do this. I don't think other portables do it. With desktops, the Aromed, and the volcano, are the only ones that do it, I think.
The herbalizer definitely does that too
 
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Churrucaman

Well-Known Member
For the validation of the Arizer Solo®, the temperature was set to the highest level (7), which according to the manufacturer’s instructions corresponds to 210°C.

If I'm not recalling wrong this varies along series but lvl 7 is more like 220-230º C, has anybody found any mention on effective temp measures besides the "manufacturer's instructions"? :cool:
 
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