Portable HEPA + iodine air cleaning carts and strippable decontamination coatings engineered for nuclear decommissioning, radiological D&D, hot cell maintenance outages, and radioactive waste operations.
In decommissioning and D&D environments, contaminated air presents three simultaneous hazards that standard HEPA systems cannot fully address.
Gaseous radioactive iodine — including methyl iodide (CH₃¹³¹I) — passes straight through HEPA filters. Capture requires nuclear-grade impregnated activated carbon rated by methyl iodide decontamination factor (DF), not just particle efficiency.
Cutting, grinding, and surface preparation during D&D generates radioactive dust and aerosols. HEPA filtration at ≥99.97% efficiency at 0.3 micron is required to prevent personnel exposure and facility contamination spread.
Radioactive dust settled on floors and surfaces creates a secondary re-suspension risk. Once disturbed, it can migrate to clean zones. Strippable decontamination film fixates and mechanically removes settled contamination before it re-enters the airstream.
Hot cells, gloveboxes, and negative-pressure enclosures within nuclear plant buildings have restricted access and irregular geometry. Air cleaning carts must be mobile, compact, and operable on standard duct connections without fixed installation.
Nuclear projects require traceable quality records: HEPA factory DOP test reports, material certificates, and in some cases ASME N509/N510 in-place leak tests, Seismic Category I documentation, or 10 CFR 50 Appendix B QA packages.
Nuclear projects frequently cross international borders. Equipment must be available in 380V/50Hz (international standard) and 460V/60Hz (North America) configurations with VFD speed control for flexible deployment.
Three complementary products — two air purification carts for airborne radioactive contamination, one coating system for surface contamination — engineered to work together on decommissioning and D&D sites.
Cart-mounted negative-pressure ventilation unit for in-cell and local-space air cleaning during nuclear decommissioning, hot cell maintenance, and radioactive waste sorting. The iodine (activated carbon) adsorber and HEPA aerosol filter work in tandem — the adsorber captures gaseous radioiodine, the HEPA captures radioactive particles.
Higher-capacity mobile nuclear air cleaning cart for local-space ventilation and negative-pressure enclosures during decommissioning, maintenance outages and waste handling. The VFD blower trims airflow to the enclosure as filters load, and a built-in differential pressure gauge tracks filter condition from the front panel.
Single-component water-based peelable film applied by spray vehicle to suppress and fixate radioactive dust on contaminated surfaces. After curing (≤2 hours), the film is mechanically recovered by film recovery vehicle — radionuclides encapsulated in the recovered film, zero secondary contamination.
A walk past the cart lineup at the production facility — units with differential pressure gauges, VFD panels and caster-mounted cabinets. Filmed units carry their JJH nameplates (JJH-3000 / JJH-500); in North America the same carts are designated IAS-NC1800-HI / IAS-NC300-HI (model number guide).
NC-series nuclear air purification carts at the production facility (JJH nameplates shown). Filmed on site; no renderings.
During decommissioning of reactor buildings, fuel handling systems, and contaminated structures, cutting and demolition work generates radioactive dust and releases trapped gaseous radioiodine. The IAS-NC700-HI maintains negative pressure in the work enclosure while the IAS-SDC-50 suppresses surface contamination before it re-suspends.
Maintenance outages in hot cells and process cells require localized ventilation control independent of the facility's main HVAC. A portable cart unit connected via 11.8 in. (300 mm) flexible ducting maintains the cell at negative pressure with respect to the surrounding building, protecting personnel in the access corridor.
Sorting and packaging of low- and intermediate-level radioactive waste disturbs settled contamination and can release gaseous species from organic waste. The IAS-NC700-HI provides continuous negative-pressure ventilation exhaust for the waste sorting enclosure throughout the operation.
Following a radiological release or incident, rapid surface decontamination is critical to limit dose uptake and prevent contamination spread to clean zones. IAS-SDC-50 is formulated for deployment by spray vehicle on outdoor paved areas, floor surfaces, and hard-surface building interiors.
Negative-pressure gloveboxes and SAS (Supplied Air Suits) tent enclosures require a controlled exhaust point to maintain enclosure integrity. The IAS-NC700-HI's dual 11.8 in. (300 mm) duct collars provide a direct connection point for standard enclosure ducting.
Where a project requires ASME N509/N510 in-place leak tests, Seismic Category I or 10 CFR 50 Appendix B QA records, we arrange them together with qualified partners. Iodine Air Systems is not currently NQA-1 / 10 CFR 50 Appendix B certified. Contact our engineering team before order placement.
Governing Chinese design standard for portable, local-space (in-cell) nuclear air cleaning carts. IAS-NC700-HI is manufactured to this standard.
Code on Nuclear Air and Gas Treatment. IAS-NC700-HI is designed to EJ/T 20088-2014; it is not ASME AG-1 certified, and AG-1 related qualification can be completed with a qualified partner for projects that require it.
US Nuclear Regulatory Commission requirements for nuclear power plant air cleaning. Quality classification: Safety Class C3 / QA Category III.
Every HEPA filter element is individually DOP (dispersed oil particulate) tested at the factory. System-level efficiency ≥99.97%; individual media rated ≥99.99%.
SDC-50 tensile and tear strength measured per ASTM D412 and D624 respectively. ≥2.0 MPa tensile, ≥10 kN/m tear.
Nuclear Power Plant Air-Cleaning Units and Components. IAS-NC700-HI is designed to EJ/T 20088-2014; formal ANSI N509 qualification for portable nuclear ventilation components can be arranged with a qualified partner.
Eight tritium monitoring instruments from 0.05 DAC (3.7 × 10⁴ Bq/m³) to 10 Ci/m³, for fusion facilities, heavy-water reactors, DOE laboratories, tritium light manufacturers and system integrators. US 120 V versions, calibration certificates and certificates of conformance. Price on quotation.
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