Direct OEM / ODM China Exporter

Trusted China Portable Air Dehumidifier Exporter & Supplier

Delivering industrial-grade rotary desiccant systems, ultra-low dew point engineering down to -70°C, and agile Industry 4.0 production for international manufacturing leaders.

Primary Lineup

Industrial & Portable Dehumidification Equipment

Engineered for uncompromising environmental tolerance, continuous deep moisture removal, and compliance across European, American, and Asian high-precision standards.

DryAir DHU Rotary Desiccant Dehumidifier Unit DP -70°C

Desiccant Dehumidifier

DHU series rotary desiccant systems engineered to reach -70°C dew point where conventional refrigeration systems fail.

View Product
Turnkey Battery Dry Room Project EPC Turnkey

Turn-key Dry Room System

Complete humidity-controlled rooms including enclosure, deep air handling, controls, and validation under one contract.

View Dry Rooms
ZJRH Series NMP Recovery System Recovery ≥99%

NMP Recovery System

Captures N-Methyl-2-pyrrolidone solvent from electrode coater exhaust with zero-loss continuous loop condensation.

View Recovery
JEN Series VOC Abatement System Condensation + RTO

VOC Abatement System

Deep-cooling condensation coupled with regenerative thermal oxidation to treat volatile chemical emissions.

View VOC System
High Efficiency

Refrigerative Dehumidifier

Energy-efficient moisture extraction for warehouses, workshops, and pre-cooling cycles upstream of desiccant rotors.

Explore Units
Modular Mobile Dehumidifier Unit Mobile Skid

Modular Portable Units

Skid-mounted compact rotary dehumidification units built for rapid temporary deployment and seasonal humidity shifts.

View Mobile Skids
Chemical Vapor Treatment VOC Abatement

Industrial Vapor Absorber

Engineered solutions for chemical manufacturing, preventing condensation corrosion in corrosive air zones.

View Solutions
Turnkey Industrial Climate Core Integrated AHU

Ultra-Dry Air Handling Unit

Custom high-volume air handlers featuring multi-stage filtration, heat wheels, and dual silica/zeolite rotors.

View AHU Systems
Industry Whitepaper

Evolving Dynamics in China Portable Air Dehumidifier Sourcing

Global supply chains are transitioning from standalone drying equipment to integrated, energy-efficient micro-environment controllers that reduce carbon foot-printing without sacrificing dew point stability.

Shift Towards Low Dew Point Control

Standard consumer dehumidifiers are inadequate for advanced battery chemistry and semiconductor facilities. Global EPCs mandate portable and modular desiccant rotors capable of holding stable humidity below -40°C to -70°C dew point during sensitive operations.

Low OPEX Heat Recovery Regeneration

Dehumidifier regeneration represents up to 40% of plant thermal loads. Sourcing demands focus on sensible heat wheels, heat pumps, and low-waste purge systems, drastically curtailing kilowatt consumption per kilogram of water vapor extracted.

Smart Edge IoT & Predictive Analytics

International buyers prioritize smart telemetry. Modern China-manufactured units integrate edge computing, PLC cloud synchronization, and continuous differential pressure monitoring to avert catastrophic rotor saturation.

-70°C
Lowest Controllable DP
≥99%
Solvent Recovery Rate
30%+
China Market Leadership
200+
Units / Month Capacity
74
Senior Technical Team
Manufacturing Precision

China Factory 4.0: Supply Chain Resilience & Reliability

Hangzhou DryAir Treatment Co., Ltd. combines domestic component availability with precision CNC manufacturing and rigorous ISO 9001 and military-grade GJB quality standards.

Rigorous Military & Export Testing

Operating under the GJB national military standard, every unit undergoes stringent in-house performance chamber verification before export, certified with CE, UL, CSA, ASME, and EAC accreditations.

Global Engineering Validation

Our 74 specialists (including PhDs, national HVAC engineers, and senior technicians) maintain deep project experience with premier gigafactory projects such as Tesla, Northvolt, CATL, ATL, and BYD.

Fast Lead-Times & 200+ Unit Scale

Monthly throughput exceeding 200 industrial dehumidifier assemblies ensures parallel plant phases are serviced without delivery delays, supported by our optional 2-year international full-service warranty.

Technical Matrix

Engineering Guide: Humidity Targets by Application

Over-specifying leads to excessive power draw; under-specifying compromises product integrity. Consult our operational target parameters before issuing RFQs.

Application & Industrial Domain Required Dew Point / Target RH System Architecture Recommendation Primary Operational Risk Mitigated
Lithium-ion Cell Assembly & Filling -40°C to -60°C DP Turn-key Low Dew Point Dry Room System Prevents toxic HF gas formation & battery degradation
Next-Gen Solid State & Li-Metal Down to -70°C DP Dual-Rotor Desiccant Dehumidifier (DHU) Halts instant metal oxidation and moisture contamination
Electrode Coating & Exhaust Stacks ≥99% Solvent Recovery ZJRH Series NMP Recovery System Reduces expensive solvent repurchase & VOC stack waste
Hygroscopic Pharma & Gelatin Capsules 10% to 30% RH Rotary Desiccant Dehumidification Unit Eliminates powder caking, sticking, and mold growth
Ammunition & Military Storage ≤40% RH (GJB Compliant) Compact Desiccant Systems / Mobile Skids Prevents explosive propellant decay and electronics rust
Warehousing & Raw Prep Cleanrooms 45% to 60% RH Industrial Refrigerative Dehumidifier Economical moisture bulk-removal upstream of rotors
Chemical Plants & Fuel Loading Stringent VOC Emission Limits JEN Condensation + RTO VOC Abatement Captures hydrocarbon gas and reclaims vapors
Real-World Applications

Engineered Where Climatic Precision Is Mission Critical

Across differing geographical regions and varying seasonal humidity profiles, DryAir's systems maintain process stability 24/7/365.

Battery Cleanroom Dehumidification

01 / Battery Gigafactories

Guards electrolyte injection lines against trace ambient air humidity, preventing hydrogen fluoride reactions.

Pharma Clean Air Handling

02 / Pharmaceutical Cleanrooms

Guarantees free-flowing powder formulations, preventing tablet dissolution during high-speed blister packaging.

Defense Anti Corrosion Humidity Management

03 / Defense & Aerospace

GJB-certified atmospheric controllers safeguarding avionics, missile guidance systems, and long-term ordnance stockpiles.

Chemical Vapor Recovery Systems

04 / Petrochemical Terminals

Cryogenic condensing systems capturing heavy hydrocarbon vapors at marine unloading ports and tank farms.

Precision Electronics Assembly

05 / Optical & Semiconductors

Maintains absolute humidity control across wafer etching and lenses, eliminating surface condensation and defects.

Turnkey Protocol

Standard Turnkey Execution Framework

From preliminary load modeling to overseas validation, our end-to-end delivery ensures consistent accountability and rapid commissioning.

Stage 01

Consulting

Process audit, moisture load calculation, and target dew point parameter mapping.

Stage 02

Engineering

Psychrometric modeling, airflow simulation, and heat recovery regeneration optimization.

Stage 03

Manufacturing

CNC sheet metal fabrication, rotor assembly, and full load chamber validation testing.

Stage 04

Installation

Modular export shipping, field mechanical erection, ductwork tie-in, and dew point sign-off.

Stage 05

Global Service

Continuous IoT diagnostics, domestic spare parts distribution, and optional 2-year warranty plans.

Technical Depth

Engineering Insights from the Plant Floor

Direct technical articles from our senior engineers addressing complex moisture dynamics, volatile organic solvent recovery, and pharmaceutical air conditioning.

Oil Gas Recovery Deep Condensation
VOC Treatment

How Does an Oil Gas Condensation Recovery System Work?

A deep dive into multi-stage refrigeration systems that capture volatile petroleum fumes and solvent vapors during tank transport and industrial off-gassing.

NMP Recovery in Battery Production
Solvent Engineering

Maintaining Stable NMP Recovery Rates in 24/7 Operations

Analysis of condensation rotor fouling, temperature differential balance, and automated scrubbing mechanisms that sustain ≥99% solvent reclamation efficiency.

Pharma Moisture Management
Pharmaceutical Cleanrooms

Preventing Moisture Contamination in Drug Manufacturing

Identifying hygroscopic load fluctuations, cleanroom air infiltration, and sizing desiccant air handlers to meet GMP packaging standards consistently.

Procurement Advisory

Frequently Asked Questions for Global Buyers

Direct technical and commercial answers regarding lead times, certification compliance, international commissioning, and custom OEM manufacturing.

What is the lowest controllable dew point achievable by DryAir's desiccant dehumidifiers?
DryAir rotary desiccant dehumidifiers deliver stable supply air dew points down to a minimum of -70°C. This ultra-low humidity performance is purpose-built for lithium-ion and sodium-ion battery cell assembly, electrolyte filling cleanrooms, high-purity chemical processing, and specialized aerospace storage.
Do you deliver turnkey dry rooms and equipment for factories outside China?
Yes. Hangzhou DryAir manages turnkey projects globally, covering engineering consultation, 3D psychrometric modeling, in-house fabrication, international logistics, on-site mechanical erection, and final validation. We have successfully supplied equipment and services to major international clients including Tesla, Northvolt, and TTI.
Which export certifications and quality standards do DryAir dehumidifiers carry?
Depending on destination requirements, DryAir products can be certified with CE (Europe), UL/CSA (North America), ASME (pressure vessels), and EAC (Eurasian Customs Union). Our manufacturing facilities run under both the ISO 9001 quality management framework and China's stringent GJB national military manufacturing standard.
What solvent recovery efficiency does the NMP recovery system guarantee?
Our ZJRH series NMP recovery systems are engineered to achieve an audited recovery rate of ≥99% from lithium-ion electrode drying and coating oven exhaust. This enables plants to reuse high-grade solvent, substantially diminish operational expenditure, and maintain full compliance with strict environmental VOC caps.
What on-site commissioning and warranty services are available for overseas purchasers?
Overseas clients receive remote IoT monitoring, rapid spare parts shipments, and on-site engineering dispatch for installation and dew point validation. We offer an optional 2-year overseas full-service agreement ensuring guaranteed response times and comprehensive lifecycle support.
Industrial Catalog

Standard & Custom Environmental Machinery

Explore our full line of industrial desiccant rotors, VOC condensers, low dew point cleanrooms, and energy-recovery air treatment packages ready for international shipping.

DryAir Low Dew Point Rotary Unit Rotary Skid

DHU Desiccant Dehumidifier

High-capacity desiccant rotor with integrated reactivation heat recovery for cleanroom environments.

View Specs
Gigafactory Battery Dry Room Cleanroom EPC

Turnkey Dry Room Facility

Full airtight enclosure construction, fire-rated insulation panels, and precise air distribution ductwork.

View Cleanrooms
ZJRH NMP Solvent Reclamation Solvent Recycle

NMP Solvent Recycle Unit

Engineered condensation loops reclaiming electrode coating solvents with 99%+ operational yield.

View Recovery
JEN VOC Treatment Facility RTO System

VOC Waste Gas Abatement

Deep-cooling and regenerative thermal oxidizers engineered to destroy hazardous volatile exhaust.

View Systems
Chilled Water

Refrigerative Dehumidifier

Heavy-duty condensing unit handling high-moisture airflows for industrial packaging warehouses.

View Refrigerative
Industrial Skid Dehumidifier Skid Mounted

Skid-Mounted Portable Drier

Complete plug-and-play climate air conditioning skids built for quick site mobilization and testing.

View Portable
DryAir Manufacturing Facility ISO & GJB

Custom OEM/ODM Solutions

Tailored cabinet footprints, specialized desiccant wheel formulations, and multi-protocol automation PLCs.

View OEM Line
DryAir Global Engineering Service Global Support

Turnkey Global Service Plan

Comprehensive after-sales service including on-site commissioning, rotor recalibration, and spare modules.

View Global Service

Ready to Specify Your Humidity Parameters?

Connect with our senior HVAC engineers for comprehensive psychrometric sizing, thermal load simulations, and detailed equipment proposals.