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I have cranked out the math and the fan I showed you is too big. Trying to duct them to all your grow areas would result in a single direction airflow. I am designing a small directional fan than can be put in these small grow rooms and give an adjustable air exchange rate of about one ever 2...

let me do the math. I am their dealer. I do cleanrooms for large commercial operations, too.

I can do all the math and sizing if you want

If you end up having a more defined growing area, this is the type of fan that solves these issues.

Air movement can be very critical. You need air movement without stressing the plant in a hurricane. This is the fan that works. For green houses or other spaces. It also prevents stratification of contaminants, heat, and humidity.

158 cfm x 60 (this convert cfm to cfh)/ 1906 ft 3 (room volume) = 4.973 air changes per hour. That is one air change per 12 minutes.

Not needed. Something like this.

You need exactly 158 cfm of air, round up to no more than 200 cfm. a bathroom fan and a small mini pleat hepa (for about 20.00 or less on ebay) and you will have it made.

https://www.convertunits.com/from/pascal/to/water+column+%5Binch%5D Use this link for your conversion. 130pa is only a 1/2 inch water column. Standard squirrel cage should be capable of .6 -.75". I couldn't imagine why you would need an aluminum pleated HEPA. These things are rated for 100s...

Yes, thats correct. If you use lower temperature, you still get value, just does't take as long between loading.

Yes, as long as they were used to strip organic compounds (such as petroleum products, but cook outside). If they were used to catalyze a contaminant such as an oxidizer (ozone), chlorine other other type chemicals, then no it won't work.

Ozone is a "STRONG" oxidizer which services to reduce the auto ignition temperature of flammable object. Since the chimney is non flammable and would discharge above the roof line, I think that could work. As to the growing/harvest part. I am trying to learn that part.

HEPA Filtration: HEPA Filtration uses Brownian Motion/Diffusion to filter out particulates. The most penetrating particle size is 0.03 um at 99.97% or greater filtration. Charcoal Filtration: Either absorbs or catalyze contaminants. Absorbed chemicals typically include organically derived...

If you sterilized the dirt prior to growing you would have a fungus free grow room.

Several issues at play here. Humidity, odor, energy recovery and spore activity. 1. Humidity can be can be handled via dehumidification system. Sized for room volume. The problem with these devices are they are mold making machines, as are split ac systems. 2. Odor: If its caused by the...

What contaminate are you attempting to fix? If your concern is odor then ozone (O3) is what you want, if you have an organics or gaseous oxidizer is the problem then charcoal. Let me know what your trying to address. I think I can help you.

My name is Herschell, I am researching Cannabis Production as it relates to high purity environments. I come to this after more than 3 decades in the cleanroom building and validation industry for Pharma and Healthcare.

I am assuming you mean 32" x 18" x 23". Determine how often you want to exchange the air. Then convert these numbers to feet. Then plug in numbers: CFM x 60 (constant) / volume = air changes per hour .

I would think that its a matter of Differential Pressure. I am seeing Fabric BDD that are activated by a pressure gradient of 1.5" Water Column. That room volume, assuming 8" ceiling, you would be generating free air flow of 23 room air changes per hour. If its sealed right I would think...