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One-Stop Expert in Industrial Air Purification Solutions​

Specializing in industrial dust removal and waste gas treatment, we deliver customized systems to safeguard clean and compliant production.Proven Performance, Trusted by Clients|Established in 2016 in Suzhou, Yisaier integrates R&D, manufacturing, engineering, and after-sales service—ranging from standalone equipment to turnkey plant-wide environmental solutions. Serving over 20 industries including electronics, chemicals, steel, and lithium battery manufacturing, we effectively tackle dust, VOCs, acid–alkali emissions, odorous gases, and oil mist, ensuring stable compliance with standards and high energy efficiency.Learn More
One-Stop Expert in Industrial Air Purification Solutions​

nnovative Filtration System for Low-Carbon & Clean Smart Manufacturing

We redevelop European & American eco tech with proprietary filter media & modular customization.Self-developed full pollution control equipment for low-carbon factories.Optimized flow & auto ash cleaning: low resistance, low O&M, fits harsh dust conditions.View product
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Full Turnkey Solutions with Full-cycle Professional Support

200+ Experts, 500+ Successful ProjectsOne-stop service: Survey, Design, Production, Installation & Lifetime MaintenanceNationwide on-site customization, stable operation & qualified emission to pass EIA easilyLearn More
Full Turnkey Solutions with Full-cycle Professional Support

Full Range of Purification Equipment

Multi-process lines for 20+ industries with complex pollution conditions

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VOCs Waste Gas Purification Equipment

Pressure-type activated carbon filters integrate into treatment systems, filtering solids and removing residual chlorine, odors, color and hard-to-treat organics.

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Odorous Waste Gas Treatment Equipment

Pressure-type activated carbon filters work in treatment systems, filtering solids and effectively removing residual chlorine, odors, color and organics.

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Respirator for Powder Industry

Key component for powder systems: dust removal, filtration and pressure balance, widely used in pneumatic conveying, pharma, chemical and lithium battery industries.

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Dry/Wet Grinding Table

Dry type uses filters for general dry dust; wet type captures dust via water for high safety, ideal for combustible dust or high-efficiency collection.。

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Dry Dust Collector

Built on cartridge (EMV) & pleated bag (EBMC) filtration: optimized flow & smart ash cleaning for efficiency; pleated design maximizes area in compact spaces, reliable and cost-effective, embodying high-efficiency, compact, energy-saving dust control.

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Wet Dust Collector

ncludes Venturi, cyclone & self-priming scrubbers for high-temperature, high-concentration dust, delivering efficient removal & cooling with low resistance, energy efficiency and compatibility for diverse industrial air purification needs.

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Acid-Base Waste Gas Purification Equipment

Includes vertical/horizontal spray towers & cyclone scrubbers with absorption-neutralization & centrifugal separation, selectable by waste gas properties and site conditions.

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Oil Mist Purifier

Uses electrostatic adsorption & mechanical centrifugation to offer tailored solutions for different oil mist characteristics, precision needs and cost budgets.

Esair Environmental Protection

Industrial Air Purification System Integration Expert

Founded in 2016, Suzhou Esair Environmental Protection Technology Co., Ltd. is a comprehensive firm focused on industrial dust and waste gas treatment, integrating R&D, design, production, installation and after-sales. We localize and redevelop advanced European and American pollution control technologies, offering a full range of equipment including dry/wet dust collection, acid-base waste gas, VOCs, odor and oil mist purification.

With a professional team of over 200 covering R&D, production, construction and after-sales, we provide single-machine customization to full plant turnkey projects. Our products serve 20+ industries such as electronics, chemical, steel, lithium battery, pharmaceutical and ceramic, with 500+ manufacturing clients nationwide, delivering tailored solutions for complex working conditions.

Modern Intelligent Manufacturing Base

Equipped with complete workshops and multiple production lines for sheet metal processing,

filter assembly, spray tower forming and machine commissioning, we realize independent large-scale production of dust collection and waste gas purification equipment.

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Qualification & Compliance Assurance

We hold a full range of environmental qualifications, test reports and system certifications, strictly adhering to national environmental standards.

All purification equipment performance is verifiable, ensuring projects pass environmental inspections and acceptance smoothly

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News & Blog

Gather environmental industry news, project cases and technical insights

to help enterprises master innovative compliance governance solutions.

High Vacuum Dust Collector

High Vacuum Dust Collector

High Vacuum Dust Collector Product Classification News Scope of Application Yisaier High Vacuum Dust Collection System is developed for source-side dust treatment generated during grinding, polishing, cleaning and other workstation operations. The complete high-vacuum dust collection system is designed to capture hazardous and production d…

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Detailed Introduction to Automatic Lime Dosing ...

Detailed Introduction to Automatic Lime Dosing System

The lime dosing system is equipment for storing quicklime powder, equipped with a silo-top dust collector and realizing automatic powder feeding. Quicklime and calcium hydroxide powder (fine particles of 200–400 mesh) are pneumatically conveyed into the storage silo by bulk tank trucks. The powder is metered via a star feeder and delivered to th…