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DezAir DEZ-1100 DehumidifiersDezAir Dehumidifiers Click To Enlarge
DezAir DEZ-1100 Dehumidifiers
Customer: 4.8/5
based on 14 reviews

All reviews | Write a review


DezAir DEZ1100 Dehumidifiers

The DezAir crawl space dehumidifier is custom made for humid, cool crawl spaces, basements and other damp areas up to 2200 square feet. Energy efficient, large capacity moisture removal. Reliable service, free shipping. See DezAir ratings & reviews.

DezAir DEZ-1100 Dehumidifiers
Dries up to 2200 square feet and removes up to 109 pints of moisture per day. Details

Save $100!

Includes Free Curbside Delivery and Free 5-yr Warranty/ 2-yr parts & labor

Availability: In Stock. Ships Same or Next Business Day.


Free Shipping on orders over $150
Condensate Pump Kit $139.00 Add to Cart
Pleated Filter Pack (Set of 3 or 6) $99.99 and up Add to Cart
Duct Kit $115.00 Add to Cart

Description of DezAir Dehumidifiers

The cutting-edge DezAir Dehumidifier is a true workhouse that is engineered to keep your crawl space or basement dry, odor-free, healthy and properly maintained for many years to come. The DezAir is an innovative crawl space dehumidification system that will maximize energy efficiency and effectively operate down to low temperatures of 40°F. Its compact, low clearance design is small enough to fit in low-ceiling crawl spaces yet its 300 CFM fan motor is powerful enough to quickly dry a full size basement. And that’s not all. The DezAir crawl space dehumidifier is equipped with a MERV-11 filtration system for filtering dust mite waste, mold and other allergens as small as 2 microns. Available exclusively through AllergyBuyersClub.com, the DezAir crawl space dehumidifier is a system that has been custom-engineered to surpass the specifications of other models in the market and offers tremendous moisture extraction at a competitive price. Covers up to 2200 square feet.

DezAir Dehumidifiers are ideal for someone who...

  • Has a large crawl space or basement with humidity issues and is need of quick moisture removal.
  • Would like a crawl space dehumidifier that will handle large areas but features a compact, low profile design that will fit in tighter spaces.
  • Needs a reliable dehumidification system to protect ones belongings and furnishings from water damage, mold and mildew growth and odor.
  • Needs a unit that operates effectively in temperatures as low as 40°F.
  • Wants a powerful crawl space dehumidifier that is energy efficient and Energy Star rated.

Features of DezAir Dehumidifiers

  • Designed for crawl space and basement dehumidification
  • Low clearance design
  • Automatic defrost thermostat
  • Humidity control adjustment
    • Humid: 55 – 65% RH
    • Normal: 45 – 55% RH
    • Drier: 35 – 45% RH
  • Powerful 300 CFM motor ideal for air circulation
  • Comes standard with MERV-11 air filtration
  • Easy access for removing and installing filters
  • Fan only option independent of dehumidification
  • Gravity drainage hose connection
  • Optional condensate pump kit
  • Compatible with duct work
  • Energy star rated

How it Works:

View or download the DezAir User Manual


Reports by Experts - DezAir Dehumidifiers

Expert Review:    Courtesy of AllergyBuyersClub.com

1. Room Coverage Based on 24 Hour Moisture Removal
2. Noise Level
3. Low Temperature Operation
4. Quality of the Continuous Drainage Option Included (Ease of hose attachment, location above the ground to improve the flow of water w/ gravity and provides the hose)
5. Bucket CapacityNot Applicable
6. Size, Weight and Maneuverability
7. Ease of Access to Bucket & to Remove and ReplaceNot Applicable
8. Energy Rating
9. Ability to Access Filter & to Remove, Clean and Re-install
10. Quality of Construction & Warranty
11. Value for the Price

The advanced DezAir dehumidifier is properly designed for installation in crawl spaces or basements that experience short and long term humidity conditions.


  • Cutting edge dehumidification for crawlspaces and basements. This unit will solve large dehumidification jobs quickly compared to multiple and less efficient dehumidifiers.
  • Features a compact, low-profile design that will fit comfortably in tight crawl space.
  • Uncomplicated, hassle free operation.
  • Built to last throughout from its carefully designed internal components to its robust housing.
  • Considering its powerful dehumidification and how much air it circulates, the DezAir is comparatively quiet for a crawl space dehumidifier in its class.
  • In the event of a power failure, the DezAir will automatically restart for least amount of interruption in its operation.
  • Its built-in MERV-11 cleans the air (down to 2 microns) as a secondary function.


  • At 86 lbs, the DezAir isn't our most lightweight unit.
  • No digital humidistat readout on the machine.


We were highly impressed with the DezAir's performance and will truly stand behind stating that this is one powerful, reliable and cost-effective solution to those with extreme moisture issues in the home or office. Right away, the DezAir crawl space dehumidifier delivered first rate water removal results quickly and efficiently. The DezAir is basically ready-to-go upon arrival: just install on blocks of your choice, set up the continuous drainage hose, plug in and let this dominant machine do all the work for you. Lastly, considering the quality and outstanding performance, we find the DezAir crawl space dehumidifier to represent excellent value for the money.


Technical Specifications of DezAir Dehumidifiers

DezAir DEZ-1100 Dehumidifiers
DezAir Dehumidifiers
Coverage Area 2200 sq. ft.
Water Removal Capacity 109 pints per day set @ 80°F, 60% RH
Energy Factor (L/kWh) 2.9
Pints/ kWh 6.4
Operating Temperature Range 40 to 95°F
CFM 300 cfm
Bucket Capacity N/A - No buckets to empty
Drain Hose Yes – Included
Noise Level 55-60 dB
Refrigerant Type R410a
Auto Defrost Yes
Power Supply 700 watts, 6.4 amps, 110-120V, 60hz
Dimensions 20"W x 15"H x 37 1/4"D
Weight (lbs) 86 lbs
Warranty 2 yr: parts/labor, 5 yr: sealed refrigeration system


Video Reviews of DezAir Dehumidifiers


Customer Reviews

of 14 (93%) customers would recommend this product to a friend.
Customer Reviews Write a review  
Overall Rating:

Written By: scooter (Raleigh, North Carolina)
I have used this product for: 6-12 months
Expertise: expert
This product is: used in addition to another, similar product
Fantastic Value and Performance Date: February 25, 2014
Pros: high quality, effective, quiet, reliable, easy to use, met my expectations
Cons: none
Best dehumidifier we ever purchased. Its performance far exceeds our expectations. This product was better than a commercial one we rented temporarily until it was delivered. Would definitely get this... (see entire review)
Overall Rating:

Written By: CD
I have used this product for: less than a month
Expertise: intermediate
This product is: a replacement for another, similar product
Best crawlspace dehumidifier on the market!! Date: April 15, 2013
Pros: high quality, quiet, easy to use, met my expectations
I replaced an older Sanidry CSB with this unit. Only had it installed for a few days. Within 30 minutes on turning it on, the RH in my 1800sf crawlspace was below 50% it has not moved from 48% in 3 da... (see entire review)
Overall Rating:

Written By: Whowasat (Central PA)
I have used this product for: 2-5 years
Expertise: intermediate
This product is: the first product I have had like this
A Dehumidifier Backed by a Great Company Date: August 25, 2016
Pros: high quality, effective, easy to use, backed by a great company
I've had one of these DeZAir dehumidifiers for 3.5 years. It functions very well keeping a large, damp basement dry. Like most dehumidifiers, I've had just a few minor malfunctions. But the manufac... (see entire review)
Overall Rating:

Written By: Sandy
I have used this product for: 3-6 months
This product is: the first product I have had like this
Extremely Efficient Date: July 23, 2014
Pros: high quality
Cons: noisy
We have an extremely large damp basement and I was concerned that I would not be able to control the humidity level down there but this unit has really done the job! It is a bit on the large size but ... (see entire review)
Overall Rating:

Written By: Billy (Chesapeake, VA)
I have used this product for: 3-6 months
Expertise: intermediate
This product is: the first product I have had like this
Great unit -- but its big!! Date: March 05, 2014
Pros: effective, quiet, easy to use, met my expectations
I purchased this unit for a crawlspace that was constantly moist. After consulting with the experts, they wanted over $15,000 to do a crawlspace encapsulation (I have a large 1 story ranch, big footpr... (see entire review)
Overall Rating:

Written By: sophie
Good purchase Date: February 21, 2014
Good quality and seems to be very reliable.... (see entire review)
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Supplies & Accessories for DezAir Dehumidifiers

DezAir DEZ-1100 Dehumidifier Duct kit
DezAir Dehumidifier Duct Kit
For situations when the unit needs to be located outside of the area where humidity needs to be addressed. Includes duct ring and 25 foot flexible duct hose.

Availability: In Stock. Ships Same or Next Business Day.

DezAir DEZ-1100 Dehumidifier Filters
DezAir Pleated Filter Pack – Set of 3 or 6
Replacement 1" Pleated MERV-11 filter packs. Check filters every six months and replace if necessary. Choose from a set of 3 or 6 filters.

Availability: In Stock. Ships Same or Next Business Day.
$99.99 and up
Choose Set

DezAir DEZ-1100 Dehumidifier Pump
DezAir Condensate Pump Kit
Use the condensate pump kit if a floor drain is not easily accessible and the exiting water has to go up hill (into a sink, out a window, etc). Condensate pump kit includes pump, tubing, clamp and screws.

Availability: In Stock. Ships Same or Next Business Day.


Notes regarding DezAir Dehumidifiers

Delivery Information:
  • Free curbside delivery service* is included with your purchase.
  • DezAir crawl space dehumidifiers are shipped via a freight carrier and require a delivery appointment. The freight carrier will contact you to set the date of delivery.

    Some rural areas may have issues with larger trucks and additional fees may apply to deliver to these areas.