AlorairCrawlspace review
Updated September 30, 2026 · SmartHomeCue Editorial Team · Facts checked September 30, 2026
We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings.
Our verdict
AlorAirCrawlspace suits US homeowners with a persistently damp crawl space who would rather buy once and leave it running than replace parts. Entry at $343.73 is high for the category, yet 6 years of warranty, 35 litres a day of extraction and coverage of 93 to 418 m² make it a focused answer to a...
Key facts
- Best for
- US crawl spaces that need set and forget drying with long warranty cover.
- Reference models
- AlorAir Sentinel HD35P, AlorAir Sentinel HD55S, AlorAir Sentinel HDi100 (Source, checked September 30, 2026)
- Price from
- $343.73 (Source, checked September 30, 2026)
- Clean air delivery rate (m³/h)
- 195 (Source, checked September 30, 2026)
- Room size (m²)
- 93 to 418 (Source, checked September 30, 2026)
- Filter cost per year
- $32.95 to $65.90 (Source, checked September 30, 2026)
- Filter change interval
- 3 to 6 months (Source, checked September 30, 2026)
- Quietest noise level (dB)
- 50 (Source, checked September 30, 2026)
- Extraction per day (l/day)
- 35 (Source, checked September 30, 2026)
- Extraction test conditions
- AHAM (80F, 60% RH) (Source, checked September 30, 2026)
- Mobile app
- Yes (Source, checked September 30, 2026)
- Warranty
- 6 years (Source, checked September 30, 2026)
- Markets
- US (Source, checked September 30, 2026)
- Headquarters
- United States (Source, checked September 30, 2026)
- Support channels
- Email, Chat, Phone, Community (Source, checked September 30, 2026)
- Products
- Dehumidifier, Fan
- Filter types
- Ioniser
- Certifications
- Energy star
- Official website
- aloraircrawlspace.com
Apps and profiles
- Elsewhere
- Xyoutube.com
Pros and cons
Pros
- Running cost is easy to plan: media at $32.95 to $65.90 with changes at 3 to 6 months.
- Generous coverage of 93 to 418 m² per unit, with a mobile app for readings and settings.
- Support runs on email, chat and phone, so phone and live chat both sit behind the warranty.
- Extraction of 35 litres a day measured at AHAM (80F, 60% RH), which is the fair way to compare output.
Cons
- Entry at $343.73 ranks 67 of 76 brands, so the purchase carries the cost.
- Filtering is ioniser only, while much of the field offers HEPA media instead.
- Shipping covers US, so buyers in other countries source and import the unit themselves.
- The quietest level of 50 dB suits a utility void rather than a room people sit in.
Who it suits
- US homeowners with a persistently damp crawl space or underfloor void.
- Owners who think in running years rather than purchase days, given media at $32.95 to $65.90.
- Buyers who want a 6 years warranty and phone support rather than the cheapest ticket price.
Who should look elsewhere
- Households wanting a purifier or humidifier in the same range: Exquisit covers purifier, dehumidifier and humidifier.
- Buyers who want humidification alongside drying: Gavri CZ-SK covers purifier, dehumidifier and humidifier.
- Value shoppers, since entry at $343.73 ranks 67 of 76 brands, and Daewoo Electricals covers purifier, dehumidifier and fan.
Plans and prices
Buying costs start at $343.73, which puts the ticket above much of the dehumidifier field, so the outlay is the thing to weigh before anything else. After the purchase, the running line is filter media at $32.95 to $65.90, and that is the figure to carry into a running cost estimate. The base machine is the Sentinel dehumidifier, and the rest of the range sits above the entry point. Buyers who plan in running years rather than purchase days tend to find the outlay easier to justify.
Core features
Air flow is 195 m³/h and extraction is 35 litres a day, a crawl space sized pair of figures rather than whole floor ones. Coverage is quoted at 93 to 418 m², so a machine can hold a large void. Filters change at 3 to 6 months, and the quietest level is 50 dB, which fits a mechanical space or underfloor area better than a room people sit in. The Sentinel range is built around drying, there is a mobile app, and warranty cover runs 6 years.
How it compares on our data
On air flow the brand ranks at position 39 of 47 brands, so the figure sits mid field. Filter cost is the stronger showing: position 7 of 46 brands. Entry price is the weak point at position 67 of 76 brands. Taken together, the pattern is a brand that asks more at purchase and less later, which suits owners who think in running years.
The company behind it
The brand is headquartered in the United States, so ordering, servicing and returns sit inside a single domestic market rather than a cross border chain. Support runs on email, chat and phone: email, live chat, phone and a community board. A specialist of this size is worth a phone call before buying, because ducting and the shape of the void decide whether the quoted output helps in your space.
How AlorairCrawlspace compares
- 9.0 vs 9.1
9.0 vs 9.1- 9.0 vs 8.5
9.0 vs 8.9
AlorairCrawlspace vs Coolblue Belgium9.0 vs 9.0- 9.0 vs 9.0
9.0 vs 9.4Arno
AlorairCrawlspace vs Dr.Prepare9.0 vs 9.2Dr.Prepare is also on the dehumidifiers list and sells in the same markets, with prices from $19.99.
- 9.0 vs 9.0
9.0 vs 8.7- 9.0 vs 9.2
- 9.0 vs 9.2
9.0 vs 9.1
9.0 vs 9.0
9.0 vs 9.1
9.0 vs 8.7BlazeVideo DE
Where AlorairCrawlspace is available
- Available
- United States
Countries from the brand (Source, checked September 30, 2026)
Frequently asked questions
What does the AlorAirCrawlspace cost up front?+
Entry price starts at $343.73 for the base Sentinel dehumidifier, and the wider Sentinel range sits above that. That buying figure is the higher end of the category, so the outlay deserves attention before the running years are counted. Models further up the range add capacity rather than a different kind of machine.
What are the running costs once it is installed?+
The ongoing cost is the filter, listed at $32.95 to $65.90 for replacement media. Extraction is 35 litres a day under the test conditions in AHAM (80F, 60% RH), a cooler and drier setting than a crawl space in a humid season, so treat the quoted output as a ceiling. Filters come round every 3 to 6 months.
How often do the filters need changing?+
Replacement intervals run 3 to 6 months, so a service schedule means repeated media changes through the year. Media type is ioniser, and that is the only filter type listed for this brand, which suits a crawl space where dust and mold spores are the concern rather than room air. Budget the media line early.
How much of a space can one unit cover?+
Coverage is quoted at 93 to 418 m², with air flow of 195 m³/h. Both figures point at a void, an underfloor area or a basement rather than a bedroom, since the range is built for damp structural spaces. Each unit is sized to hold an area of that kind steady after installation.
Is it quiet enough to run in a lived in room?+
The quietest published level is 50 dB, and a crawl space or basement void swallows most of that. In a room where people sit, the same figure would be noticeable, particularly with a fan running alongside. The design target here is damp structure rather than a quiet living space.
Does the brand have an app and what support is there?+
There is a mobile app, so tank readings and settings can be checked from a phone without standing next to the unit. Support runs on email, chat and phone: email, live chat, phone and a community board. Warranty cover runs 6 years, so faults inside that period fall to the brand rather than the installer.
Where does AlorAirCrawlspace ship and is it certified?+
The brand is based in the United States and its shipping policy covers US, so domestic orders are the straightforward case. Certification listed is energy star, and extraction is measured at AHAM (80F, 60% RH), which matters when comparing figures against brands that quote a different test setting.
Who is this dehumidifier built for?+
It suits owners of a persistently damp crawl space or underfloor void who want a specialist machine rather than a general air device. Exquisit covers purifier, dehumidifier and humidifier and Gavri CZ-SK covers purifier, dehumidifier and humidifier, so a household that also wants a purifier or humidifier has broader ranges to compare.
Sources
- aloraircrawlspace.com checked September 30, 2026
Backs: Mobile app, Certifications, Filter types, Headquarters, Price from, Products, Reference models, Room size (m²), Support channels, Warranty
“App Download ... AlorAir® App Controlled 120 PPD Dehumidifier | Sentinel HD55S White WiFi | Size for 1300 sq.ft”
- aloraircrawlspace.com/pages/shipping-policy checked September 30, 2026
Backs: Markets
“As of the moment we only ship to the United States, not international locations.”
- aloraircrawlspace.com/products/alorair-4-pack-merv-1-filt... checked September 30, 2026
Backs: Filter cost per year
“AlorAir 4 Pack MERV-1 Filter for HD55/HD55S/HDi65/HDi65S $65.90 (USD 16.48 per filter); filter replaced once per 3-6 months, so 2-4 filters a year = USD 32.95-65.90 a year”
- aloraircrawlspace.com/products/alorair-70-ppd-crawl-space... checked September 30, 2026
Backs: Clean air delivery rate (m³/h), Extraction test conditions, Extraction per day (l/day), Filter change interval, Quietest noise level (dB)
“Sentinel HD35P: Airflow 115CFM, 195CMH (115 CFM x 1.699 = 195.4 m3/h)”
Compiled from 4 source pages, checked September 30, 2026. We did not open an account.
AlorairCrawlspace
US crawl spaces that need set and forget drying with long warranty cover.