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Yes. The MDY-ND Series Heavy-Oil Indoor Circulation Purifier features a ductless design that requires no exterior wall connection, ceiling ductwork, or drilling. It collects, purifies, and recirculates cooking fumes entirely within the kitchen. Available in four models ranging from 3000 to 6000 m³/h, it handles everything from single-burner stir-fry to multi-burner high-heat cooking. A liquid film water wash removes approximately 70% of oil and traps sparks, followed by electrostatic adsorption, H10/H14 filtration, and coconut shell carbon odor removal. Ideal for mall islands, ground-floor retail in residential areas, subway commercial zones, and tourist site shops where external exhaust is not feasible. Purification and odor removal data are based on rated conditions; actual performance may vary per test reports and on-site conditions.

Based on factory-rated operating conditions, the MDY-ND series achieves approximately 99% smoke purification efficiency and about 90% odor molecule adsorption via the coconut shell carbon stage, enabling simultaneous smoke and odor removal. Actual performance depends on installation location, airflow matching, cooking oil fume volume, and cleaning/maintenance intervals. We will calculate required airflow during the selection phase based on site-specific conditions. Purification data is validated by third-party testing reports, which are available for property management or environmental compliance audits.

For electrostatic models, clean the electric field every 2-3 months; reduce to every 1 months under heavy cooking fume conditions. Clean or replace the intake pre-filter and drain bottom once a month, and wipe and inspect insulators quarterly. Ensure units are completely dry before powering on to prevent arcing. If manual cleaning is inconvenient, choose an auto-cleaning or fully automatic self-cleaning model that automatically sprays and air-dries at set intervals, reducing downtime and labor costs.

Airflow is calculated based on actual site conditions, primarily considering: number and type of burners, hood length, and cooking method (stir-fry, grilling, or deep-frying). Industry reference indicates a single Chinese wok burner typically requires approximately 2000 m³/h; oil frying and grilling demand higher rates. We will recommend the appropriate model based on your provided burner count, kitchen area, and exhaust conditions, specifying required equipment length, power capacity, and maintenance clearance—avoiding rough estimates by area that could result in poor capture efficiency or excessive energy consumption.

Electrostatic oil mist purifiers are ideal for outlets with exhaust capabilities and airflow rates of 4000-64000 m³/h, as well as centralized exhaust systems. Water spray purifiers are best suited for high-fire or deep-frying scenarios with significant grease and spark risks, serving as a primary cooling pretreatment stage. Automatic cleaning and fully self-cleaning units are designed for continuous operations in settings like cafeterias and food courts where manual disassembly and cleaning are impractical. If external exhaust is not feasible, prioritize an all-in-one recirculating unit. We provide tailored system recommendations based on cuisine type, site requirements, and maintenance staffing—rather than pushing a single product model.

Please confirm the following four items: Power (for internal circulation models 22, standard 120V/230V AC is sufficient; for external exhaust static eliminators, match power to the specific model), Space (ensure at least 600 mm of clearance in front or on the side for maintenance access, plus device length), Floor (must be level and support the unit's total weight of 180-380 kg), and Property Management (submit equipment specs, purification details, and test reports for entry approval). Also, inform us in advance about ceiling height, vent locations, and any cabinet modifications. We will provide an installation diagram to ensure the contractor completes everything correctly in one visit.

Accepted. The internal circulation system operates without external exhaust, ductwork, or drilling, ensuring a short installation cycle. We can provide equipment specifications and test reports to support mall or office building property management approval. Purified air is discharged back into the room from the side. Combined with coconut shell carbon odor removal, it is ideal for food court stalls, supermarket deli sections, and office building catering areas. Before installation, please confirm equipment dimensions, weight, and mounting requirements with property management; we can supply relevant technical drawings.

The internal-loop model features a 350 mm multi-blade silent fan wheel, dynamically and statically balanced for high air pressure and reduced noise—ideal for open-front retail spaces in malls and locations near customer areas. It also supports 9 variable-speed settings to adjust airflow based on smoke levels: use high speed for heavy stir-frying and low speed during idle periods, saving energy compared to fixed-speed models. Actual noise and power consumption depend on installation method, operating speed, and business hours; we will recommend the optimal setting based on your operating schedule and stall layout.

One-year warranty on the entire unit; core components are covered per warranty terms. After the warranty period, parts supply and technical support remain available. Consumables such as wear-prone parts and filter cartridges are not covered. Core components—including stainless steel electrostatic fields, digital constant-voltage power supplies, ceramic insulators, variable-frequency fans, and water circulation systems—are manufactured in-house with custom molds. Long-term availability is guaranteed for electrostatic modules, H10/H14 filters, coconut shell carbon, spray nozzles, and pumps to minimize downtime. Installation drawings, wiring instructions, and remote guidance are provided during the installation and commissioning phase.

Connect with Kitchen Engineering Firms, Commercial Equipment Distributors, and Eco-Equipment Agents. We provide complete product catalogs, technical specifications, dimension drawings, and test reports. Our services include bulk supply, regional planning, and project-based delivery. For specific projects, we offer selection recommendations and site audit documentation. Please contact us via our Contact page to share your company name, region, and primary sales channels. A regional manager will follow up to discuss pricing and partnership options.

早餐面点、面馆汤粉与蒸菜馆的蒸汽量常大于油烟，普通油烟机只是把含蒸汽空气转移，水蒸气照样在吊顶与墙面冷凝。内循环蒸汽净化一体机（MDY-CT）让含蒸汽空气经过压缩机制冷区，水蒸气液化成水后自动收集并接入后厨排水管，从气态变成液态排走；设备吊顶隐藏安装，标准型号 1.3 米与 1.5 米并支持长度定制，电控部分做防潮隔离。实际湿度改善效果与门店蒸汽量、厨房密封情况有关，我们会结合现场给出配置建议。

Yes. This all-in-one indoor recirculating range hood (MDY-B9) requires no outdoor ducting or wall drilling. Smoke and grease are filtered internally through a mesh filter, high-voltage electrostatic precipitation, and an odor-removal charcoal cartridge before circulating back into the room. It operates directly on a standard 220V outlet. Under rated conditions, it achieves ≥95% smoke removal and ≥80% odor reduction, with 4-variable speed settings via inverter control. At low speed, noise is approximately 35dB. Ideal for older homes, open kitchens, rental apartments, and large villas. The unit includes a φ180 mm备用 pipe port for future connection to an exhaust duct if needed. Actual performance depends on cooking habits and maintenance frequency.