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hepa and humidifier info
    #2263178 -

my friend picked up a huge hepa filter unit today and an unltrasonic humidifier for a total of 13.97$. he was just wondering if anyone has more accurate info on how good hepa is at removing contaminants from the air, and also how extended use effects the quality of the filter. also i'm pretty sure ultrasonic is the best type of humidifier, but he didn't know exactly what steps should be taken to ensure that airborne contaminants aren't coming from his humidifier. he boiled water, and cleaned the whole unit with peroxide, even ran it for a second or so so it would get through the plumbing, rinsed it real good and filled it with the boiled water. he thinks he is beeing paranoid, but i told him better save then sorry i always say. so is beeing overly zealous in ensuring his humidifier is clean and the water is purrified?



me

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Re: hepa and humidifier info [Re: discored]
    #2263935 -

You shouldnt have to worry too much about contams from the humidifyer because he wont be using it until after colonization and a casing is put on, wich protects it from most contams. Keeping the humidifyer clean of mold every other week or so and using boiled water is a good idea. Boiling will rid of any chlorine wich might harm the mushes a bit, but it not mandatory. Most tap water is clean to begin with because of the chlorine.


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My YouTube channel
Items i use and recommend https://kit.com/MyersMushrooms
Pre built mushroom drum sterilizershttp://www.bubbasbarrels.com/catalog/kombucha-mushrooms-cold-brew-coffee/mushroom-sterilizer

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Re: hepa and humidifier info [Re: discored]
    #2264536 -

Vinegar is good for removing scale build up in humidifiers. There is also a liquid humidifier treatment that prevents the build up. It's probably some type of water softener. The concern with an ultrasonic is the fact that they can really soak a terarrium, which will increase the chances of mold growth on an uncolonized medium. May I ask where you got the ultrasonic for so cheap? Mine went out and I think the transducer costs about the same as a new unit! And no, there is not a damn thing wrong with being clean! Cleaning your humidifier will ensure a long working life of the unit and will prevent favorable conditions for contamination. Have a great day.


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Growing conspiracy
Everyone's after me
Frayed ends of sanity
Hear them calling
Hear them calling me

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Re: hepa and humidifier info [Re: ParanoidSchizoid]
    #2266285 -

thrift store thrift store thrift store its amazing what you can find second hand, well he says he has the humidifier in the his project room, to bring the entire room up to 80% or so, his plan is to slightly open the lids on his large clear handi bin terrariums, and pray to good things dont get fucked up, any advice for him?


discored

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Re: hepa and humidifier info [Re: ParanoidSchizoid]
    #2266290 -

the humidifier cleanliness is a good thing to watch, but a glug of h2o2 in container every couple of weeks should keep it from getting any mold... also your friend may need a semi-expensive "minute" timer...or a humidistat and some circuit wiring... because like Paranoid said, they put out quite a bit of liquid...2-3 gallons a day if i'm not mistaken... that is way too much... hour-timers are usually not sufficient for humidity control.

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Re: hepa and humidifier info [Re: MycoCultures]
    #2278213 -

well he says it seems to be working well. he has been able to keep the room at between 80 and 90 percent and right at 90 degrees, hopefully that hepa filter will keep things clean as he has taken to leaving the lids off of his terrariums.

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Re: hepa and humidifier info [Re: discored]
    #2283047 -

If he's humidifying his entire workroom, may I ask what provision he has made for dealing with the excess amounts of water that will build up on the floor? Has he a drain installed? If not, he may run into problems.

-Odium

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Re: hepa and humidifier info [Re: ParanoidSchizoid]
    #2283206 -

they are selling a lot of ultrasonic humidifiers very cheap on eBay now. It seems as it would be from a bankrupt's assets or something similar. Here is a link
and here another one. ( sorry, everything is in german )
Does anybody know if they would work ? Have no experience with them ...

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Re: hepa and humidifier info [Re: ragadinks]
    #2283231 -

That's not cheap - they're 13GBP in UK (less than 20EUR)

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Re: hepa and humidifier info [Re: BrokenBeast]
    #2283297 -

oh, I thought that's cheap because they say that the unit would cost more than EUR 60.- when it would be bought regularly.

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Re: hepa and humidifier info [Re: ragadinks]
    #2288517 -

he hasn't really experienced much problem with moisture build up on the floor, granted its carpted. he just noticed the other day though that his temp was to high, round 90 or so, he is lowering it, hopefully it will help with his yield, he is about to switch to a 50/50 + casing mixture, he hopes that coupled with his new environmental controls his yield will increase.

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Re: hepa and humidifier info [Re: discored]
    #2289299 -

I have an ultrasonic and it works great, if you have a problem with too much humidity, hook up a couple of 2 liter bottles to it through some tubing. i have a pic but I have to go get it, brb with that pic


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:mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2:

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Re: hepa and humidifier info [Re: discored]
    #2289300 -

Here it is


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:mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2: :mushroom2:

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Re: hepa and humidifier info [Re: Akrobatik]
    #2322748 -

well after a few weeks of constant humidity the room took on a kind of stinky feet smell, so he took down shop for the moment, thinking it was contamination, however all of the casings look ok. i think he is going to make a large tent to put all his stuff in,

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Re: hepa and humidifier info [Re: discored]
    #2356851 -

Be careful if you do a tent. Micro climates are always preferred as far as contams go. I have a HEPA filter in my grow room as well and it's saved my ass numerous times. The decent ones all have UV bulbs which kill bacteria.


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:oogle:  :pacman: :tripping:

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Re: hepa and humidifier info [Re: discored]
    #2357285 -

Ultasonics are only good for misting or uncased cakes. For cased trays, they cannot and should not be used to keep the humity up because all they can do is achieve 100%. According to Paul Stamets and other experts in mycology, you don't want 100% humidity for well formed shrooms in a cased tray. You want 85-99%, which means you need to constantly move in less-than-100% air because air that is not being moved will go to 100% in no time. I recommend a cool mist humidifier to bring in 98% humid air. You need the type with a disc and a splash comb around it. LOOK IN THE UNIT to find out if it had that. I recommend the unit sold by Kaz in the baby section of most Target stores. The closer you are to 100%, the more you should provide for internal circulation. In a small chamber--say a 30 gallon tank or something like that--the cool mist itself will provide plenty of internal cirulation. For something larger, you might want to introduce a PC fan. The point is that you WANT some evaporation and regular mistings (either manually or through an ultrasonic). Slight evaporation off the shrooms makes them grow correctly.

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Re: hepa and humidifier info [Re: Blue Helix]
    #2360046 -

this is the second post ive seen from you that refers to ultrasonics. my ultrasonic has served me perfectly, i have it turning on twice a day 12 hrs apart, and staying on for 5 mins. i also use a cool mist humidifier running 24/7, and i have a small high cfm pc fan blowing across the terrarium.

and my cool mist humidifier supplies no where near 98% rh. (calibrate your hygrometer?) so supplemental humidity is definitly required, and an ultrasonic works very nicely for this.

>>Slight evaporation off the shrooms makes them grow correctly.

Teonan had a great post in the thread "optimal o2 for mushrooms" (or something along those lines), that described very well, why a humidity gradient between the mushrooms, and the surrounding air should be present. i think baby hitler started the thread. sorry im too lazy to search for it.


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"A human being is part of a whole, called by us the Universe, a part limited in time and space. He experiences himself, his thoughts and feelings, as something separated from the rest--a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest us. Our task must be to free ourselves from this prison by widening our circles of compassion to embrace all living creatures and the whole of nature in its beauty."
-Al Einstein

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Re: hepa and humidifier info [Re: amyloid]
    #2361102 -

amyloid, I use the ultrasonic the same way, as a mister essentially. I also use a PC fan. Our setups are probably very similar.

The hygrometer I have is electronic and was verified accurate using the salt technique (at least it is accurate at 75% rh). I have greatly restricted the output of the cool mist to a garden hose, so in my case, it does seem the output is over 95%. Since my hygrometer maxes out at 95%, I can't tell if it's 98% of not.

Do you restrict the output of your cool mist? What readings do you get off your hygrometer? Why kind of hygrometer is it?

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Re: hepa and humidifier info [Re: Blue Helix]
    #2446447 -

in a foafs experience with a cool mist humidifier. it doesnt put out enough humidity for a somewhat large grow chamber, so to solve that problem use both ultrasonic(humidity) and cool mist(air exchange). have both enter the top of the chamber with tubes. with the ultrasonic tube being on top of the cool mist tube for mist diffusion purposes.

Edited by fresh313 (03/18/04 08:08 AM)

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Cool mists can dry if the air turn over is high enough. [Re: fresh313]
    #2446550 -

fresh313, my experience is about the same, and I use a similar setup.

I restrict the intake to the current Target model of the Kaz cool mist by covering it about 3/4ths of the way with duct tape. I restrict the output to a garden hose. If the input is not constricted but the output is, the unit drips water on the floor from too much pressure inside it (the older version of the unit did not do this but the new one does). Using this restricted output/input arrangement the output flow has over 95% humidity according to my cheap gauges (which I calibrated using the salt technique). Why the drying effect at 95% when _The Mushroom Cultivator_ doesn't even mention it? Well, remember evaporation is a function of BOTH humidity and air turn over. We have the humidity in the right range, but have you ever wondered how much air turn over we have in tiny non-commercial setup like this? I have.

In a tiny growth chamber (say with a 4'x2'x1' air space) there is a LOT of air turn over using a garden hose a Kaz unit! It's to the order of a couple hundred times an hour! _The Mushroom Cultivator_ gives humidity parameters of 85%-92% during the cropping stage for an air turn over rate of 1 to 3 per hour, but in this set up the air turn over is effectively 100 times that! This drastically increased turn over doesn't seem to hurt anything?after all, think about how much air turnover you might get on a breezy day in nature--but the high air turn over does generate more surface evaporation. I guess one could restrict the Kaz unit more, but I don't for fear it might ruin the unit. Instead I just counter the extra evaporative loss by using timed ultrasonic mists.

The ultrasonic turns on a few minutes every four hours. That is plenty to keep the bed well misted. If you keep the ultrasonic on longer, it tends to add water to the casing (which you might need sometimes). I won't give actual times because it's going to be different for every setup, so you'll just need to work it out for your particular setup.

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Re: hepa and humidifier info [Re: discored]
    #2446726 -

Doesn't look like anyone is hitting the topic about the HEPA he purchased as well...

What type of HEPA is this? Can you get a brand and model number? There are a few different varieties each having their positive and negatives. Used HEPA's are pretty cheap because the actual HEPA filter tends to cost the most to replace. $100 HEPA units can be purchaed routinely on Ebay for less than $30. If you are careful about the model you select and shop around for the replacement HEPA filters (ebay is great for this too) you can often get models in which changing the HEPA (only done once every 1-3 years) is relatively cheap.

The best stand alone HEPA air cleaners tend to be the "canister" style Honeywell hepas in which the air is sucked in through the filter in a 360 degree intake and expelled though a 360 exhaust. Changing the pre-filter every 3 months is critical to prolonging the life of the actual HEPA filter. Prefilters are usually only $10 each.

You can check to see how "good" your HEPA filter is by looking at the intake side of the filter (where the dirty air comes in) if it is new then the filter will be white. The filter turns grey with age, and if it is close to black then toss it.

The HEPA will vey VERY effective in filtering and exchanging air in the room where your growing chambers are located. This will help reduce airborn molds and bacteria a fair bit if the HEPA is left on a "low" setting at all times. It will also reduce the amount of "junk" in your indoor air like dust, pollen, other spores, ect.

I have three running in my house and a few in our office.

Hope you find this helpful.


--------------------
psilocyber!
SporeWorks: Exotic Mushroom Culture and Spore Supply

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Re: hepa and humidifier info [Re: psilocyber]
    #2446771 -

:thumbup:

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Re: hepa and humidifier info [Re: psilocyber]
    #2457319 -

right on thats the info he needs. right now his new grow chamber is a 14x8 foot room, with vinyl floors, and vinyl based wall papper, got two ultrasonics, one ona timer 3x a day for 30 minutes, the other one is just for extra. seems to be going ok.



discored

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Re: hepa and humidifier info [Re: discored]
    #2458285 -

that's kinda scarry.....but nice.


--------------------
"From a certain point of view"
-Jedi Master Obi Wan Kenobi

PM me with any cultivation questions.

I just looked at my profile and realized I had a website at one point in time on geocities, it's not there anymore and I have no idea what I had on it. Anybody remember my website from several years aga? PM if so please.

Edited by mycofile (03/21/04 07:26 PM)

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Re: Cool mists can dry if the air turn over is high enough. [Re: Blue Helix]
    #2458419 -

a foafs chamber; 5x2x5, height,width,length right? 60" martha stewart tent w/ zipper front. kaz coolmist w/ 2 1/2 in braided pvc tube. so i bet airflow was increased about 4-5 times over just a normal garden hose. your right the airturnover is more than necessary but it doesnt hurt at all. cuases evaporation off of the casing layer tho, gotta mist alot. the ultrasonic cycled 15 on / hour off via a normal size garden hose. humidity is no problem with the ultrasonic, tweaking it does take some time. a digital thermometer/humidity gauge w/ memory of highs and lows came in handy. about restricting the air flow, you could always just throw the cool mist on a timer, then youd have to retweak the ultrasonic ; ). the work is almost as much fun as the result. tweaking gets repetitive though.

discored: that is alot of casings man, alot of time and effort. good work.



Edited by fresh313 (03/21/04 08:12 PM)

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Re: Cool mists can dry if the air turn over is high enough. [Re: fresh313]
    #2458492 -

discored: that is alot of casings man, alot of time and effort. good work.


actually it didn't take that much work, 36 pf jars, at .5 jars per casing, cased with 50/50 +lime, the casings total took about 4 horus, the jars less then an hour to inoculate, and less then 30 minutes to prepare for sterilization. the only factor my friend hasn't considered is what he should do with the casing layer, for a while he was sterilzing then he started pasturizing then stopped treating it all together, his contamination increased but not by much, he says he will go back to pasturizing. anyway my friend appricieates your compliment.


discored

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Re: hepa and humidifier info [Re: Akrobatik]
    #2459850 -

Akrobatik I have what appears to be the same humidifier as you. I have a similar setup minus the pop bottles. I have found that I get way too much humidity with the humidifer and i have recently started to use it empty with just the fan going and occasionally putting water in it. I plan on either adding an entire new terranium hooked up to its output with the terraium I am using or possibly just adding the bottles. The terranium I am using is a rubbermaid bin similar to what you have. I was just wondering if you use your humidifer as air exchange as well. Also if I add another terranium do you think that the humidifer will provide a sufficient amount of air exchange to both. I am certain it will provide enough humidity since it can fill up and entire bin with 100% humidity in about 2-3 minutes.

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Re: hepa and humidifier info [Re: discored]
    #2461118 -

so why exactly do you say scary? just wondering



discored

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Re: hepa and humidifier info [Re: discored]
    #2467503 -

they looked like quart jar size casings

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Re: hepa and humidifier info [Re: fresh313]
    #2473119 -

nope only half a pf jar is used per tray. back to the original premise of this thread though. someone was telling me that ultrasonic humidifiers produced a dry mist? what the hell is a dry mist. i didn't really get teh concept anyone think they know what this guy is talking about .

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Re: hepa and humidifier info [Re: discored]
    #2724913 -

Here are some pictures of my ultrasonic humidifier setup. It uses a 10 gallon culligan jug to trap the condensation so it does not over-saturate the casings. IMO it produces a little bit too much humidity for casings, I recently transferred over to a cool mist for this little setup, however i'll put the ultrasonic back into commission once i get my Martha stewart closet mate. I'll run the cool mist 24/7 for air exchange etc, and if the humidity isn't where i want it I'll put the ultrasonic on a timer to get the humidity levels req.

Here are the pics, enjoy!







--------------------
"... Another way for gnomes to say......."

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Re: hepa and humidifier info [Re: Piper]
    #2727900 -

discorded

ive found that humidification in a larger grow area is easier when you have steam humidification (vicks type dimmer controlled) as long as your grow area is well ventilated (steam puts off heat)

as for floors carpeted doesnt work well, i used shelving and hardwood floors with powerded bleach and a fresh mop, when things got damp.

lots of mild peroxide on casing layer too this solved the biggest problem i had with cobweb

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Re: hepa and humidifier info [Re: discored]
    #2728523 -

discored said:
someone was telling me that ultrasonic humidifiers produced a dry mist? what the hell is a dry mist. i didn't really get teh concept anyone think they know what this guy is talking about .


cool mist = ultrasonic = sound waves used to convert water to vapor

warm mist = heated = heat element converts water to steam vapor


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To be honest, I fear the OTD. ---TheMadConductor

Now I'm gonna have to start getting down on my knees and blowing mushrooms... ---RogerRabbit

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Mushrooms, Mycology and Psychedelics > Advanced Mycology
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