Intake side. Chronotech uses USI's pressurized ceiling-diffusion plenum with European-spec polyester or fiberglass diffusion media. The cycle-time-optimization tunes airflow and pressure for fastest release; the integrated HMI tracks ceiling diffusion pressure-drop in real time. AMU pre-filter cycle is tuned to keep pace with the throughput target, typically 60-90 days at high tempo, longer at moderate tempo.

Exhaust side. Pit-mounted exhaust pad media, Chronotech's exhaust-pit slot configuration follows USI's premium downdraft pattern. Catalog kit defaults to fiberglass arrestor pad with polyester arrestor as the upgrade path for higher-solids, waterborne, or premium-finish work where the cycle-time-optimization narrows the loading tolerance. The 25-entry filter media taxonomy on this site distinguishes the 12 exhaust types (fiberglass-arrestor, polyester-arrestor, accordion-paper, paper-mesh, pocketed-paper, cube-overspray-arrestor, tower-exhaust-pocket-bag, plus five more), 9 intake types, and 4 specialty types, Chronotech's verified-fitment kit names the specific media-type slug per slot. Subscription cadence syncs to the HMI's filter-cycle alert pattern where the shop has integrated USI service provisioning.

Slot expectations are queued for re-mapping. A note on transparency: the booth-model slot expectations row for the Chronotech is flagged in the verification queue as pending re-mapping against the new 25-entry media taxonomy (the platform expanded from 9 to 25 media types on 2026-05-09). The kit you receive is correct, we're updating the metadata record, not the physical fitment.

Cycle math. Intake-ceiling at 25-50 day cycle on cycle-time-optimized throughput; AMU pre-filter at 60-90 day cycle; exhaust-pit pad at 5-10 day cycle for high-throughput collision, 14-21 day cycle for moderate-tempo facilities. Subscription delivers each position on its calibrated cadence and can sync to the HMI alerts.

Chronotech installations face standard US regulatory layers, state DEP authority plus regional AQMDs, plus federal OSHA spray-finishing standards (29 CFR 1910.94). High-throughput collision centers running Chronotech often face stricter regional AQMD reporting cadences and may carry NESHAP Subpart HHHHHH 6H Area Source documentation expectations specifically tied to high-volume finishing. The integrated USI HMI's filter-change log plus our subscription delivery records together produce the compliance record auditors expect. Original USI capture-efficiency documentation accompanies each fitment shipment.