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Greentech Logo

BEST VOC REDUCTION IN THE MARKETPLACE.

ODOGard

CLEANER AIR IMPROVES HUMAN PERFORMANCE.

Series 3500
MERV 11 Filtration

Patented Greentech filters feature ODOGard®. An advanced coating technology that creates a covalent bond with odor molecules, changing the molecular structure, removing smell.  Learn more about how the right filters can save energy costs!

ODOGard logo

Award Winning

  • 100% Biodegradable
  • 100% Water Soluble
  • Non-Toxic. Non-Irritant. Oral, Dermal & Eye

Removed 99% More Airborne Terpenes in a head-to-head comparison, reducing odors and creating a cleaner environment for employees.

Made in USA

Reducing Pressure Drop by 18% means less energy is used. Better for the bottom line and the environment.

99%

18%

30%

140%

more effective than carbon filters

more sustainable than MERV13 filters

less expensive than carbon filters

greater reduction of airborne VOCs

Filter Sizes

1" FiltersActual Finished Size
16" X 20" X 1"15½" X 19½" X "¾
20" X 20" X 1"19½" X 19½" X ¾"
20" X 22" X 1"19½" X 21½" X ¾"
20" X 24" X 1"19½" X 23½" X ¾"
1" 3500 series hepa+odargard filters flow rate graph
Flow Rate (CFM)Press Drop (in. w.o.)
2950.05
5900.10
8850.16
1,1800.23
1,4750.31
2" FiltersActual Finished Size
16" X 20" X 2"15½" X 19½" X 1½"
18" X 20" X 2"17½" X 19½" X 1½"
20" X 20" X 2"19½" X 19½" X 1½"
12" X 24" X 2"11½" X 23½" X 1½"
20" X 24" X 2"19½" X 23½" X 1½"
24" X 24" X 2"23½" X 23½" X 1½"
14" X 25" X 2"13½" X 24½" X 1½"
16" X 25" X 2"15½" X 24½" X 1½"
20" X 25" X 2"19½" X 24½" X 1½"
20" X 30" X 2"19½" X 29½" X 1½"
2" 3500 series hepa+odargard filters flow rate graph
Flow Rate (CFM)Press Drop (in. w.o.)
4920.03
9840.09
1,4760.16
1,9680.25
2,4600.34
4" FiltersActual Finished Size
18" X 20" X 4"17½" X 19½" X 3½"
20" X 24" X 4"19½" X 23½" X 3½"
24" X 24" X 4"23½" X 23½" X 3½"
4" 3500 series hepa+odargard filters flow rate graph
Flow Rate (CFM)Press Drop (in. w.o.)
4930.05
9850.10
1,4780.18
1,9700.28
2,4630.40

Filter Size: 24″ X 24″ X 2″

Test Aerosol: KCI, Neutralized

Percentage fractional efficiency per particle diameter

Flow Rate: 1,968 CFM

Velocity: 492 FPM

Size Range (uM)Initial Fractional Efficiency
0.30 - 0.4019.0%E1
0.40 - 0.5526.7%
0.55 - 0.7034.9%
0.70 - 1.0044.3%
1.00 - 1.3055.3%E2
1.30 - 1.6061.9%
1.60 - 2.2068.0%
2.20 - 3.0076.3%
300 - 4.0082.3%E3
4.00 - 5.0086.3%
5.50 - 7.0088.2%
7.00 - 10.0090.0%

If you’re in the cannabis industry, you have odor problems. Terpene odors not only pollute the air inside your facility and affect your staff, but can also affect your neighbors and their businesses.

Bonus: Effectively removing terpenes from the indoor air ecosystem actually stimulates plants to produce more terpenes!

Indoor grow operations (including tomato, cucumber, mycology, cannabis, and more …) can avoid crop value losses, increase profit and improve the air quality inside and out. 

Use this form (orange button) to see the financial impact of IAQ improvements for a cannabis grow operation.  (We’ll send a detailed IAQ Impact Report)

2019: Masking Odors

2023: Removing Odors