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USA Lab
Compact Benchtop Air Filtration System
in Fume Hoods
$1,153.00 - $3,100.00
In stockPrice varies by Size.
Benchtop ductless air filtration enclosure in three chassis sizes – Model 200, Model 225 and Model 300 – each listed with or without a lid, plus a revised lidded Model 300 (SS-300-WSL2). It takes the same replaceable Model 200 and Model 300 cartridges as the rest of this hood range: HEPA rated up to 99.97% efficient on particles down to 0.3 microns, heavy-duty granular activated carbon, or an acid-gas blend.
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Description
A compact benchtop enclosure with an integral filtration module, intended for small-scale bench work where the contaminant has to be captured at source rather than diluted by room ventilation. It is a ductless unit: air drawn through the enclosure passes the filter stack and is returned to the room, so there is no ductwork, no roof penetration and no make-up air to design in – but the filter media has to be matched to the chemistry before the unit is useful.
Configurations as listed
- SS-200-WS – Model 200 chassis
- SS-225-WS – Model 225 chassis
- SS-300-WS – Model 300 chassis
- SS-200-WSL / SS-225-WSL / SS-300-WSL – the same three chassis supplied with a lid
- SS-300-WSL2 – revised lidded Model 300
Filter cartridges are ordered separately and are chassis-specific. The Model 200 and Model 300 sizes are covered by the replacement filter listing in this range: HEPA (packs of two, rated up to 99.97% efficient on particles down to 0.3 microns), 2.5 lb heavy-duty granular activated carbon, 2.5 lb heavy-duty acid-gas blend, and activated-carbon pre-filter pads in packs of twelve.
Only the configuration and filter data above are confirmed for this listing. Enclosure opening dimensions, airflow, sound level and electrical draw are not stated in the data we hold for this model and we have not inferred them. If your procurement or EHS review needs those figures documented, ask us and we will obtain them from the manufacturer in writing.
Frequently asked questions
What sizes and configurations are available?+
Seven: SS-200-WS, SS-225-WS and SS-300-WS as open-top chassis, the same three with a lid (SS-200-WSL, SS-225-WSL, SS-300-WSL), and a revised lidded Model 300, SS-300-WSL2.
Does this unit need to be ducted?+
No. It is a ductless recirculating enclosure - filtered air is returned to the room rather than exhausted to atmosphere. That removes the ductwork and make-up-air burden, but it also means the filter media is the only thing between the process and the operator, so the media has to be selected against the specific chemicals and concentrations in use. Where the chemistry is unknown or breakthrough cannot be monitored, a ducted hood is the safer specification.
Which replacement filters does it take?+
Model 200 and Model 300 cartridges, ordered separately: HEPA in packs of two (up to 99.97% efficient on particles down to 0.3 microns), 2.5 lb heavy-duty granular activated carbon, 2.5 lb heavy-duty acid-gas blend, and activated-carbon pre-filter pads in packs of twelve. Match the cartridge series to the chassis series - a Model 200 chassis takes Model 200 cartridges.
What is the difference between the lidded and open versions?+
The WSL variants are the same chassis supplied with a lid, and SS-300-WSL2 is a revised build of the lidded Model 300. The listing does not state the difference between the two Model 300 lid versions or the enclosure opening dimensions, so check the internal clearance against your equipment footprint before ordering.
What grade of activated carbon is used in the carbon cartridges?+
Granular coconut-shell base with a minimum surface area of 1,000 m2/g measured before impregnation, ball-pan hardness of 95 minimum, ash content 5% maximum, apparent density 0.45 to 0.58 g/ml, and 8% to 13% moisture as packed. Carbon tetrachloride activity is 60%, 70% or 85% minimum depending on the grade supplied.
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