State of Art Filtration Technology

Advanced Sensing Technology

Communication

How can we guarantee a safe and non‐polluting Fume 

Hood?

Liquid chemicals

Powder chemicals

Pollutant + Adsorbant  Adsorbant‐Adsorbate

Polluted air

Adsorbant surface

Clean Air

Adsorbate

Adsorption

]tan].[[]tan[

tPolluAdsorbanttPolluAdsorbantK

Desorption+ +

Adsorption

Desorption

Activation process : from charcoal  to activated carbon

• Large internal volume, and large internal surface available for adsorption

• Porous structure

• Produced with different material: wood, coconut shell, dust. 

• Trap organic solvents

Water Purification

Gas Mask

Solvent recovery

Activated Carbon for Solvent Recovery

The small size pores increase the strength of the bound between the activated carbon and the pollutants.

Proof of filtration efficiency

ASTM D5228 ProtocoleSTEP 1

Pure butane flow

AC samples

Neutrodine®Solvent 

recovery AC

33g 27g

ASTM D5228 ProtocoleSTEP 2

Dry air flow

AC samples

Neutrodine®Solvent 

recovery AC

33g 27g

Solvent recovery AC Neutrodine®

2g 23g

Potassium carbonate

impregnation

Creation  of chemical group on the surface

Neutrodine traps:

•Polar organic solvents

•Non‐polar  organic solvents

•Inorganic Basis

•Inorganic acids

1 – Evaporation of 50 mL of pure Cyclohexane and chemical measurements at the filter exhaust

2 – Evaporation of 50 mL of Hydrochloric acid 37% and chemical measurements at the filter exhaust

3 – Evaporation of 50 mL of Ammonia 30% chemical measurements at the filter exhaust

4 – Back to step 1 

Testing protocole

Chemicals

Concen

trations

C6H12 HCl NH3

Used chemicals

Handling under progress

“To supplement the lab build out we recommend the use of ductless fume hoods for the remaining required hoods. The combination approach will allow the greatest build flexibility while satisfying safety and cost considerations.”

Matt GudorfEnergy Project ManagerFacilities Management

DETECTION

Light

LightPre‐filter

LightPre‐filterHEPA Filter (Optional)

LightPre‐filterHEPA Filter (Optional)

Primary Neutrodine Filter 

LightPre‐filterHEPA Filter (Optional)

Primary Neutrodine Filter 

Fan box And Sampling zone

LightPre‐filterHEPA Filter (Optional)

Primary Neutrodine Filter 

Fan box And Sampling zone

Neutrodine Backup Filter 

Full range of chemicals testedMore than 2 years of laboratory experiments

Glutaraldehyde  Formic  acid Methanoic  acid  Carbon  disulfide    Ammonia    Ammonium  hydroxyde  sol  a‐Chlorotoluene    Benzyl  chloride    p‐Dichlorobenzene  1,2‐Dibromoethane    Ethylene  bromide  Ethylene dibromide  1,2‐Dichloroethane  Ethylene  chloride    Ethylene  dichloride  Benzene  chloride  Chlorobenzene Phenyl  chloride  Aminocyclohexane  Cyclohexylamine  2‐Butoxyethanol    Butyl  Cellosolve® Butyl  glycol Triethylamine  Dimethyl  sulfoxide  DMSO  Bromoethane  Ethyl  bromide  Hydroxybenzene    Phenol  Phenyl hydroxide  Hexane n‐Hexane Cyclohexane Xylene (isomers) Acetic acid Ethanoic acid Glacial acetic acid (pure compound)  Dimethyl benzene (and isomers) o‐Xylene  2‐Propyl acetate  Isopropyl acetate Methyl benzene Phenylmethane  Toluene  Toluol  Propyl  acetate  Propylacetate    n‐Pentane  Ethyl  formate  2‐Methylpropyl acetate   2‐Methylpropyl ester of  acetic  acid   beta‐Methylpropyl ethanoate    Isobutyl  acetate Acetonitrile Cyanomethane    Ethyl  nitrile    Methyl  cyanide  2‐Phenyl  propane    Cumene  Cumol    Isopropyl  benzene  Isopropyl  benzene    1,2‐Ethanediol    Ethylene  alcohol  Ethylene  glycol  Glycol  2‐Furylmethanol    2‐Hydroxymethylfuran  Furfuryl alcohol Furyl carbinol Diethamine  Diethylamine N‐Ethylethanamine  n‐Octane Isooctane  Trimethyl  pentane‐2,2,4  2,6‐Dimethyl‐4‐heptanone    Diisopropyl  ketone  2‐Ethoxyethanol  Cellosolve® Ethylene glycol mono ethyl ether 1, 4‐Dioxane Diethylene dioxide  tert‐Butyl acetate Nonane all isomers Naphta 30/60 Stoddard solvent White spirit Isoamyl acetate Isopentyl acetate  n‐Amyl acetate sec‐Amyl acetate Diethyl ether Diethyl oxide Ether  Ethyl ether Ethyl oxide Nitroethane Cyclohexene Mesitylene  Propylbenzene  Trimethylbenzene  Ethyl  acetate  Ethyl  ethanoate    1‐Butanol  Butyl  alcohol  n‐Butanol    2‐Propanol    Dimethyl  carbinol    IPA  Isopropanol  Isopropyl  alcohol  1‐Propanol    Propanol‐1  Propyl  alcohol Diethylene oxide  Tetrahydrofuran THF Methanol Methyl alcohol 2‐Propanone  Acetone Dimethyl ketone 2‐Butanol    Butyl  alcohol  sec  Butylene  hydrate   Methylethyl  carbinol  SBA  2‐Heptanone    Dipropyl  ketone Heptan‐4‐one   Absolute  alcohol Alcohol    Ethanol  Ethyl  alcohol Dichloropropane  1,  2  Propylene  chloride Propylene  dichloride    Glutaraldehyde Formic acid Methanoic acid Carbon disulfide Ammonia Ammonium hydroxyde sol a-Chlorotoluene Benzyl chloride p-Dichlorobenzene 1,2-Dibromoethane Ethylene bromide Ethylene dibromide 1,2-Dichloroethane Ethylene chloride Ethylene dichloride Benzene chloride Chlorobenzene Phenyl chloride Aminocyclohexane Cyclohexylamine 2-Butoxyethanol Butyl Cellosolve® Butyl glycol Triethylamine Dimethyl sulfoxide DMSO Bromoethane Ethyl bromide Hydroxybenzene Phenol Phenyl hydroxide Hexane n-Hexane Cyclohexane Xylene (isomers) Acetic acid Ethanoic acid Glacial acetic acid (pure compound)

G‐guard Software

Network managementRemote controlReal Time alerts

The 3 things that makes GFH a reliable and safe solution to your ventilation needs are:

•Filtration fume hood powered by a new generation of Filter able to trap a large range of chemicals

•Sensing technology able to guaranty a pollutant release lower thant 1% of TLVs

•A smart monitoring of a network of GFH with gGuard

FILTRATION DETECTION COMMUNICATION

Why is it important to perform a safety assessment before

designing a lab ?

safety assessment

LP report

Investment

Input information• type of handling• chemical• container• Duration, frequency…

The LP report provides information about:

•Ability of GFH to contain and to trap all the handled chemicals

•Ability to detect the chemicals when one of the filter is saturated

•Filter predictable life time and associated cost of filter replacement