Portable Filtration Units
Showing 1–9 of 18 results
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MAC-21 Series (3)
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SP-505A Series (2)
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SP-700 Series (3)
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SP-1000 Series (2)
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SP-1600 Series (2)
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1600-Series Systems (2)
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2500-Series Systems (2)
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Portable Air Filtration
SP-125VS Filtration Unit
The SP-125VS variable speed HEPA filtration unit is a small, easily transportable tool for contamination control. Suitable for use in confined spaces, it is perfect for spot ventilation, welding, torus work, glove bag and gloved enclosure air cleaning. The optional carbon prefilter is useful for fume or vapor control where those elements are necessary. The stainless steel cylindrical design facilitates cleaning and increases the durability of the unit.
Dimensions: 23" L x 12.5" W x 16.9" H nominal with rubber isolation feet. Weight: 45lbs. -
MAC-21 Series
MAC-21 Ventilation Unit
The MAC-21 is a modular ventilation unit capable of providing High Efficiency Particulate Air (HEPA) filtration with 99.97% efficiency @ 0.3 microns.
The MAC-21 is an assembly of three modules:
1) Power Module- a direct drive blower/motor and base assembly;
2) Filter Module- prefilter & HEPA filter housing assembly;
3) Quick-Mount Cart- handling cart and mounting platform for the power module and filter module.This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (Fans and Blowers) and Canada under product Class 3812-01 (Fans and Blowers).
500CFM, Base Unit -
MAC-21 Series
MAC-21D Ventilation Unit
The model MAC-21D (P/N FM41) is an adaptation of our model MAC-21 (P/N FM37) 500 CFM HEPA unit. This unit gives up some of the “modular features” in favor of a design assembled from explosion-proof components. The MAC-21D features an explosion proof motor and starter with a spark proof blower design (Class I Zone 2, AEx d nA IIA T3C [US] / Ex d nA IIA T3C [Canada]). Unlike the standard MAC-21, the blower/motor is not removable from the unit cart, and the flex hose inlet is not reconfigurable.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (Fans and Blowers) and Canada under product Class 3812-01 (Fans and Blowers).
500CFM, Explosion-proof -
MAC-21 Series
MAC-21VFD Ventilation Unit
The MAC-21VFD is a modular ventilation unit capable of providing High Efficiency Particulate Air (HEPA) filtration with 99.97% efficiency @ 0.3 microns.
The MAC-21VFD is an assembly of three modules:
1) Power Module– a direct drive blower/motor and base assembly;
2) Filter Module- prefilter & HEPA filter housing assembly;
3) Quick-mount handling cart and mounting platform for the power module and filter module.This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (US – Fans and Blowers). Please call for information on VFD units that are CSA approved for use in Canada.
500CFM, Variable speed -
Portable Air Filtration
SP-505A Filtration Unit
The SP-505A HEPA filtration unit has the highest flow rate and static pressure rating available for a unit of its size and weight. It out-performs anything in its category and sets the standard for high quality air cleaning equipment in a small, highly-portable package. The hand truck configuration allows operation in either a horizontal or vertical position and facilitates transportation of the unit close to the work site, thereby eliminating the necessity for excessive lengths of flexible duct.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (Fans and Blowers) and Canada under product Class 3812-01 (Fans and Blowers).
515CFM, Base Unit -
Portable Air Filtration
SP-505VFD Filtration Unit
The SP-505VFD HEPA filtration unit has the highest flow rate and static pressure rating available for a unit of its size and weight. With the variable speed model, the user may control the blower speed from 20% to 100% of the base speed. The SP-505VFD out-performs anything in its category and sets the standard for high quality air cleaning equipment in a small, highly-portable package. The hand truck configuration allows operation in either a horizontal or vertical position and facilitates transportation of the unit close to the work site, thereby eliminating the necessity for excessive lengths of flexible duct.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (US – Fans and Blowers). Please call for information on VFD units that are CSA approved for use in Canada.
515CFM, Variable Speed -
Portable Air Filtration
SP-700 Filtration Unit
The SP-700 HEPA filtration unit is a compact, highly portable, industrial quality source of air cleaning. It gets close to the job, eliminating long runs of flex ducting and the associated loss of system performance. The SP-700 operates in either the vertical or horizontal position. The unit is equipped with an 8′ power cord and slide gate for flow control. The unique cylindrical design provides durability and requires less space than comparably rated platform models.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (Fans and Blowers) and Canada under product Class 3812-01 (Fans and Blowers).
735CFM, Base Unit -
Portable Air Filtration
SP-700VFD Filtration Unit
The SP-700VFD Variable Speed HEPA filtration unit is a compact, highly portable, industrial quality source of air cleaning. With the variable speed model, the user may control the blower speed from 20% to 100% of the base speed. It gets close to the job, eliminating long runs of flex ducting and the associated loss of system performance. The SP-700VFD operates in either the vertical or horizontal position. The unit is equipped with an 8′ power cord and slide gate for flow control. The unique cylindrical design provides durability and requires less space than comparably rated platform models.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3812-81 (US – Fans and Blowers). Please call for information on VFD units that are CSA approved for use in Canada.
735CFM, Variable speed -
Portable Air Filtration
SP-700EP Filtration Unit
The SP-700EP (Class I Zone 2, AEx d nA IIA T4 [US] / Ex d nA IIA T4 [Canada]) HEPA filtration unit is a compact, highly portable, industrial quality source of air cleaning. It goes to the job, eliminating long runs of flex ducting and the associated loss of system performance. The SP-700EP operates on 120 VAC in either the vertical or horizontal position. The unique cylindrical design of the SP-700EP provides durability and requires less space than comparably rated platform models.
This unit has been evaluated to the applicable CSA standards for use in the United States under product Class 3818-81 (Fans and Blowers) and Canada under product Class 3818-01 (Fans and Blowers).
735CFM, Explosion-proof
RPS produces a line of portable High Efficiency Particulate Air (HEPA) purification and filtration units. These range in size from portable units with a capacity of 125 CFM to large permanent units with capacities of up to 10,000 CFM.
A complete line of accessories including filters, charcoal adsorbers, flexible duct, connectors, stainless steel couplings and adapters are also offered.
RPS was instrumental in the introduction of this technology to the nuclear generating industry. The air cleaning equipment product line has some unique features that were pioneered by RPS such as a “housingless” filter holder design and a cylindrical filtration module design.

The CSA mark (certification) means a product has been tested and meets applicable standards for safety and/or performance, including the applicable standards written or administered by the American National Standards Institute (ANSI), Underwriters Laboratories (UL), Canadian Standards Association (CSA), NSF International (NSF), and others.
CSA International is accredited by the Occupational Safety and Health Administration (OSHA) as a Nationally Recognized Testing Laboratory (NRTL) and the Standards Council of Canada (SCC). CSA is fully qualified to test electrical, electronic, mechanical, plumbing, Energy Star, HVAC, and lighting equipment, along with a wide range of other products sold throughout North America, Europe and Asia.
CUSTOM SIZES AND CONFIGURATIONS AVAILABLE UPON REQUEST.
MOST MODELS ARE AVAILABLE WITH VARIABLE FREQUENCY DRIVES.
Click here to use our Ventilation Calculator.
The resulting calculation will specify the size of the vent unit required to produce the desired number of air changes.
Aerosol Challenge (“DOP”) Testing
Factory testing
- RPS can perform aerosol challenge “DOP” testing of portable HEPA ventilation systems to assess filter and filter seal integrity prior to shipping the HEPA filtration unit. Challenge testing is performed according to ANSI/ASME guidelines using PAO (Polyalphaolefin – Emery 3004) as the challenge aerosol.
On-site testing
- RPS can also provide a qualified technical specialist to perform this service on-site, as well as providing the aerosol generator, photometer, and test media necessary to perform the required measurements. At the conclusion of the testing, RPS will generate a report to document our findings and make repairs or recommendations.






























