Commercial LGR Dehumidifier for Water Damage Restoration
Industrial Dehumidifier for Large Grow Room
Whole House Dehumidifier for Crawl Space Attic
Preair Company Responsibility of Environmental Protection Low Carbon

welcome to preair

Preair specializes in the development and production of commercial and industrial dehumidifiers, delivering dependable humidity control solutions.

Preair has been committed to developing indoor air quality (IAQ) solutions for over 20 years. Through the dedicated efforts of our team, we’ve introduced a full line of dehumidifiers—including the LGR, ZETA, PRO, HT, CFZ, and Whole House series—to meet a wide range of needs.
Our dehumidifiers are trusted for water damage restoration, crawl space, basement, and greenhouse humidity control, mold prevention, etc. They’re also essential in critical environments like archives, power distribution rooms, sports venues, factories, hospitals, and other healthcare facilities. As a professional manufacturer, Preair is focused on delivering reliable, efficient dehumidification solutions for homes, commercial spaces, and industrial applications.

about preair

Professional dehumidifier manufacturer

Zhejiang Preair Electrical Appliance Industry Co., Ltd. is one of the best dehumidifier manufacturers that provides customized and finished dehumidification equipment. The main factory of Preair locates in Hangzhou and covers an area of 53,000 square meters. The factory has several production workshops (sheet metal, spray-coating, roto molding, etc.), office buildings, a CNAS Lab testing facility, environmental protection facilities, staff dormitories, and canteens. Preair production workshops include three fully automatic production lines, a semi-automatic production line, laser numerical control sheet metal production equipment, rotational molding production equipment, etc.

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About Preair Dehumidifier Company
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  • 20+
    Industry Experience
  • 53000+
    Factory Area
  • 1.2million
    Annual Production Capacity
  • 2000+
    Cooperating Suppliers

new arrivals

Well-designed dehumidification equipment sold by Preair. Pick the best smart dehumidifier for your purpose.

products
HT 1501 Commercial Powerful Dehumidifier Self Draining

HT 1501 Commercial Powerful Dehumidifier Self Draining

Preair commercial dehumidifiers are well-designed and have a wide application. With a sheet metal housing, LED panel, cart shape, and drain hose, the HT series dehumidifiers are popular among young white-collar workers, administrative leaders, professionals in restoration companies, senior home service technicians, and individual business owners. The large dehumidification capacity and reasonable price of the HT 1501 dehumidifier are alluring to every customer.

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HT 1380 Commercial Portable Dehumidifier for Basement

HT 1380 Commercial Portable Dehumidifier for Basement

Preair recently launched the HT 1380 commercial dehumidifier for the Southeast Asia market. Under high temperatures and very humid conditions, the unit does a good job. It shows many benefits, such as controlling humidity, preventing mold, saving costs, and lowering the burden of air conditioning. A humid living and working environment makes people uncomfortable and prone to illness. Dehumidifiers are becoming more and more popular in Southeast Asia countries.

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HT 901 Commercial Garage Dehumidifier with Drain Hose

HT 901 Commercial Garage Dehumidifier with Drain Hose

Preair provides high quality and cost effective commercial dehumidifiers for sale. The HT 901 dehumidifier with drain hose is efficient, easy to move, compact, and rigid. We are the source factory that accepts customized orders. Please contact us at any time.

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VT70E Energy Efficient Dehumidifier for Crawl Space

VT70E Energy Efficient Dehumidifier for Crawl Space

Preair has newly launched the efficient model, the VT70E dehumidifier. It specializes in controlling humidity in narrow spaces. In crawl spaces, basements, attics, workshops, and underground shopping malls, installing VT70E dehumidifiers is an economic way to reduce humidity levels, prevent mold and mildew, and remove odors.

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AF650 Industrial HEPA Air Scrubber for Mold Remediation

AF650 Industrial HEPA Air Scrubber for Mold Remediation

Air scrubbers play an important role in Industrial Air Purification, Construction and Renovation, HVAC Systems, Healthcare Facilities, Mold and Fire Damage Restoration, Commercial and Residential Use, and Environmental Protection. The AF650 HEPA air scrubber Quality is absolutely guaranteed, the wholesale price is reasonable, a large quantity of favorably.

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CFZ40 Heavy Duty Industrial Dehumidifier for Greenhouse

CFZ40 Heavy Duty Industrial Dehumidifier for Greenhouse

PREAIR CFZ series of industrial dehumidifiers are designed and built for cultivation, providing professional humidity control for successful grow operations. These units remove moisture from the air, helping control humidity in various-sized grow spaces. They powerfully circulate air within your cultivation space to create a healthy, grow-optimized environment. Please email us your requirements, and PREAIR will respond as soon as possible.

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CFZ20 Compact Industrial Dehumidifier for Pharmaceutical Industry

CFZ20 Compact Industrial Dehumidifier for Pharmaceutical Industry

The CFZ20 industrial dehumidifier can play an important role in the manufacturing packaging and storage of pharmaceutical products. It allows optimal control of the ambient humidity conditions for the fluidity of the powder conveying and the drying of the heat-sensitive products. More and more customers from the pharmaceutical industry are building a business relationship with PREAIR. Welcome to consult!

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CFZ10 Industrial Scale Dehumidifier for Food Processing

CFZ10 Industrial Scale Dehumidifier for Food Processing

Excess humidity causes bacterial growth, condensation on cold products, damaging packaging, and spoiling the product resulting in poor consumer experience. The CFZ10 industrial dehumidifier is the most efficacious and cost-effective solution to reduce moisture in the air and maintain the desired humidity level to optimize the quality of food products.

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HT 1501 Commercial Powerful Dehumidifier Self Draining

HT 1501 Commercial Powerful Dehumidifier Self D...

HT 1380 Commercial Portable Dehumidifier for Basement

HT 1380 Commercial Portable Dehumidifier for Ba...

HT 901 Commercial Garage Dehumidifier with Drain Hose

HT 901 Commercial Garage Dehumidifier with Drai...

VT70E Energy Efficient Dehumidifier for Crawl Space

VT70E Energy Efficient Dehumidifier for Crawl S...

AF650 Industrial HEPA Air Scrubber for Mold Remediation

AF650 Industrial HEPA Air Scrubber for Mold Rem...

CFZ40 Heavy Duty Industrial Dehumidifier for Greenhouse

CFZ40 Heavy Duty Industrial Dehumidifier for Gr...

CFZ20 Compact Industrial Dehumidifier for Pharmaceutical Industry

CFZ20 Compact Industrial Dehumidifier for Pharm...

CFZ10 Industrial Scale Dehumidifier for Food Processing

CFZ10 Industrial Scale Dehumidifier for Food Pr...

applications

Dehumidifiers play a vital role across a wide range of environments. Preair’s commercial dehumidifiers are commonly used in wine cellars, basements, underground parking garages, warehouses, shopping malls, and conference rooms—places where humidity control is essential for comfort, safety, and product preservation. 

For more demanding environments, Preair’s industrial dehumidifiers are widely used in textile factories, food processing facilities, tobacco plants, optical manufacturing, tanneries, ceramics workshops, and on construction sites, where controlling moisture helps protect equipment, materials, and processes. 

In residential settings, Preair’s home dehumidifiers help create a more comfortable and healthier indoor environment by reducing excess humidity, preventing mold growth, and improving air quality.

Pharmaceutical Industry

Pharmaceutical Industry

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Pharmaceutical Industry

Pharmaceutical Industry

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Pharmaceutical Industry

Pharmaceutical Industry

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projects

At Preair, our mission is to deliver tailored dehumidification solutions that meet the unique needs of our customers. We serve a wide range of clients, including commercial growers, restoration professionals, shopping mall operators, factory owners, and more. 
Visit our website to explore real-world case studies and see how our solutions have made a difference across various industries.

Customize a Dehumidifier

Qualifications

As we grow our global presence, Preair dehumidifiers are earning recognition from more regional and global certification agencies, ensuring trust and compliance across markets.

  • ISO45001 CERTIFICATE
  • ISO9001 CERTIFICATE
  • REACH CERTIFICATE
  • CE CERTIFICATE
  • CCC CERTIFICATE
  • UKCA CERTIFICATE
  • GS CERTIFICATE
  • ISO14001 CERTIFICATE
  • BSCI CERTIFICATE
  • ETL CERTIFICATE
  • ROHS CERTIFICATE
  • CRAA CERTIFICATE
  • SAA CERTIFICATE
  • CEC CERTIFICATE
ProTECH. ProDRY. ProCONTROL

With a track record of serving 100+ factories, cultivation facilities, and commercial environments, Preair specializes in delivering customized, effective solutions that truly work.