A pollution control unit assembled from catalog modules can look compatible while containing mismatched ratings. The collector may accommodate more airflow than the proposed odor modules, or a pressure figure may omit components that the fan must overcome. Matching airflow, electrical supply and pressure means checking the complete configuration rather than selecting each stage independently.
Polygee’s engineering range illustrates the distinction. Electrostatic precipitation is supplied as a stage that can be combined with UV-C and activated carbon, but the published families have different airflow ranges. A modular construction describes how equipment can be configured; it does not establish that every combination has the capacity of the largest component.
Specify the duty of the complete treatment run
Begin with the required extract duty. Each supplier needs the same design airflow and cooking information when proposing treatment, otherwise the resulting offers may describe suitable individual products without describing a suitable combined installation.
Polygee’s description of a pollution control unit separates the treatment assembly from the hood and fan. It also asks for model-specific documents and test conditions. That makes the complete equipment schedule, rather than a category label, the starting point for comparing ratings.
Identify which stages are included. Electrostatic precipitation, UV-C and activated carbon address different parts of the exhaust load, so an arrangement intended to control both cooking particles and odor needs each selected function considered at the required duty. An omitted or differently rated stage should be visible in the proposal rather than hidden behind a general capacity statement.
Do not transfer the collector’s maximum airflow downstream
LK-E0 is published at 4,000–40,000 m³/h, while LK-E1 and LK-E2 cover 3,000–24,000 m³/h. These are ranges for the electrostatic stage. They do not establish the capacity of every odor module that might be connected to it.
Polygee’s standard UV-C range, UV30 through UV150, covers 3,000–15,000 m³/h. The model table therefore provides a separate airflow boundary that has to be checked when a higher-capacity collector is proposed upstream.
The CB30–CB150 activated carbon range also covers 3,000–15,000 m³/h. Connecting its largest standard model to a higher-rated collector does not create a combined train rated at the collector’s maximum flow. The downstream stage retains its own selection requirements.
Request an engineered configuration where the standard ranges do not align. Do not infer a universal parallel arrangement by dividing the required airflow by a catalog maximum; flow distribution, connections and the full treatment duty still need to be resolved for the actual project.
Compatibility needs confirmation at the proposed duty. Even when nominal airflow labels match, the supplier still needs to know the cooking process and gas-phase treatment objective, because matching a volume-flow number does not establish that the selected arrangement addresses the actual exhaust load. Record the accepted configuration and its assumptions together so a later substitution can be reviewed against the same basis.
Keep design efficiency separate from tested performance
The manufacturer labels LK-E2 at at least 98% design efficiency, LK-E1 at at least 95% and LK-E0 at at least 90%. These are published design ratings. They should remain described that way rather than being rewritten as independently measured results for an installed system.
Ask what evidence applies to the selected model. A test report needs its model, airflow and conditions before a buyer can assess its relevance, and a result published for another product family does not automatically establish the performance of the proposed engineering-stage configuration.
Preserve the measured subject too. Particle-removal performance is not a gas-phase odor result, while a satisfactory observation at a discharge point does not reproduce a laboratory test. Treating those as different evidence questions avoids assigning an entire assembly a percentage derived from a single stage.
Build the pressure review from compatible boundaries: Pollution Control Unit Ratings
Polygee lists equipment resistance of 23 Pa for E1, 31 Pa for E0 and 34 Pa for E2 on the LK-E page. These are electrostatic-stage figures; fan selection also needs to consider downstream UV-C and activated carbon modules, ductwork and any distribution plate.
Use configuration-specific data. A pressure schedule should identify the airflow and included components beside each entry, especially where a supplier also offers a complete module with a different stated resistance boundary. Otherwise the calculation may omit a component or count the same allowance twice.
The carbon-module page leaves equipment resistance to the model quotation and asks for fan margin for carbon loading. A blank catalog entry is therefore missing project data, not evidence of negligible resistance. Obtain the relevant value before concluding that the existing or proposed fan can deliver the required duty.
Match electrical supply without confusing it with consumption
Polygee states a standard 220 V/50 Hz supply across the LK-E range. Its E1 and E0 brochure tables do not publish rated power, leaving electrical load to the quotation. Matching voltage and frequency does not supply the missing load figure.
The UV modules also specify 220 V/50 Hz as standard, with other supplies configured for the destination. Their lamp-load calculation uses 40 W per lamp and explicitly excludes ballast losses. That lamp total should not be treated as the electricity consumption of the entire exhaust-treatment installation.
Activated carbon adsorption requires no separate electrical supply to the carbon module. Nevertheless, the airflow still passes through a resistive stage, and the media requires replacement. Absence of a module power connection should not be translated into an assumption of zero system energy demand or zero operating cost.
Check the UV configuration as a treatment arrangement
The UV model table lists 10 lamps and a 400 W lamp load for UV120, compared with 9 lamps and 360 W for UV150. Those published entries show why lamp count cannot be inferred solely by assuming it increases whenever nominal airflow increases.
Read the selected row as a configuration. Lamp arrangement, cabinet dimensions and the proposed duty need to be considered together; a spreadsheet that automatically assigns more lamps to every larger model would overwrite the supplier’s actual data without establishing a better design.
The supplier also states that the 185 nm band intentionally generates ozone and that the downstream reaction section is designed for the project. This requires a confirmed arrangement, not an invented universal dwell time or an unconditional claim of no ozone discharge based only on the presence of a UV chamber.
UL Solutions describes UL 8782 as addressing safety aspects of pollution-control assemblies in commercial grease ducts, separately from grease-removal effectiveness. Its explanation does not certify any particular combination discussed here or turn a capacity match into an approval determination.
Polygee’s LK-E page explicitly says its UL 867 listing for specified packaged models does not extend to the LK-E series. A document carried by another product family cannot therefore be assigned to the engineering stage simply because the products share a manufacturer.
Have the responsible project participants review the supplied documents against the applicable requirements. Electrical compatibility, airflow matching and safety-document coverage remain separate checks. Passing one is useful progress, but it does not settle the others.
Accept a matched configuration rather than a collection of ratings
The final review should follow the complete airflow path and the associated records. Every included stage needs a stated duty, a compatible supply where relevant and a defined contribution to the pressure calculation.
Confirm the proposed collector and downstream module models.
Check airflow compatibility without extending catalog maxima to other stages.
Identify design ratings and separately supplied test results.
Resolve pressure data and electrical loads that remain quotation-specific.
Confirm the UV reaction arrangement and applicable document scopes.
A matched pollution control unit is an engineered configuration whose component ratings make sense together. The largest airflow number, highest design efficiency or lowest stage resistance cannot describe that configuration alone. Keeping each value attached to its model and boundary makes the selection assessable without promising an unverified site result.
Ishika Tawar is a biotechnology researcher and science enthusiast with a curiosity for understanding how life works at the molecular and cellular level. That curiosity started somewhere around school, wandered through a lot of unrelated corners of science and physics, and eventually settled on something she actually wants to spend her life on: aging and longevity. She supports transhumanism and believes that science and technology should be explored seriously as tools to overcome some of the biological limitations of the human body.
Ishika holds a Master's degree in Biotechnology and has experience in both wet-lab and computational research. At ACTREC, she worked on a project studying the interaction of the TG2 protein with the ribosome, where she gained experience in cloning, site-directed mutagenesis, transformation, and gene knockdown. She was also involved in studying ribosomal heterogeneity using R and publicly available single-cell RNA sequencing datasets from different cancers. As a Research Assistant at SafeWright, she worked on client-based projects involving microbial culturing, biochemical tests, and analysis, along with literature research, report writing, and preparation of laboratory protocols. She has also worked with Python-based analysis to study differential DNA methylation in breast cancer.
Her current areas of interest include epigenetics, genomics, gene therapy, stem cell biology, computational biology, and the use of AI in biological research. She is particularly interested in how these areas can contribute to understanding aging and developing ways to extend healthy human lifespan. She has explored this interest through research projects and hackathons focused on AI, aging, and longevity. She enjoys following ideas across biology, technology and physics, and she believes in evidence, questioning ideas and staying curious about things that are not yet understood.
Outside research, Ishika enjoys reading and talking about science and scientific ideas. She loves travelling and is especially fond of mountains. She also enjoys science communication and hopes to make scientific topics easier to understand without making them inaccurate or oversimplified.
