Model
Alorair Sentinel Pro35X
Rank #73 means 72 of the 519 dehumidifier models we track cost less to run each year; the 39th efficiency percentile means it uses less energy for its size than 39% of those models.
What does the Alorair Sentinel Pro35X cost to run per year?
The Alorair Sentinel Pro35X runs for about $45 a year, landing it near the bottom of the cost table at rank #73 of 519 dehumidifier models we track. Capacity-normalized, it ranks ahead of just 39% of dehumidifier models we track, a soft spot worth weighing against the dollar figure. Its IEF of 1.9 reflects integrated energy factor, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Knka Pro PD30MA-20 at $43/yr runs a little cheaper and the Argendon Sandidry Pro35C at $45/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A dehumidifier typically stays in service for somewhere around 8 years; over that span, the Alorair Sentinel Pro35X's $45/yr adds up to roughly $360 in electricity alone, before purchase price or repairs.
Also sold as: Argendon Sandidry Pro35C.
By the numbers
The Alorair Sentinel Pro35X normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $45/yr, here is what the Alorair Sentinel Pro35X adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Alorair Sentinel Pro35X costs about $450. That is roughly $190 less than the class median, which would run closer to $640 over the same ten years.
How the Alorair Sentinel Pro35X compares
The dehumidifier class we track runs from $19 to $521 a year. At $45/yr, it runs about $19 a year cheaper than the class median of $64, and it is about $26 a year more than the cheapest dehumidifier to run at $19.
What drives its running cost
At 21.27 pints/day, the Alorair Sentinel Pro35X is a small dehumidifier for its class, which spans 1.91 to 172.13 pints/day with a median of 32.46 pints/day, less capacity to service is usually the first reason a running-cost figure lands on the low side, before efficiency even enters the picture. Its IEF of 1.9, below the class median of 2.01, reflects integrated energy factor: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Integrated Energy Factor (IEF). IEF measures liters of water removed per kilowatt-hour; a higher IEF means less energy per pint of moisture removed for a given capacity.
- Water removal capacity (pints/day). A dehumidifier rated to remove more pints per day is built for a larger space or a more humid room, and generally draws more power to do it.
- Humidistat accuracy. A unit with a more precise humidistat cycles the compressor off once the target humidity is reached, rather than running continuously.
Common questions
Is the Alorair Sentinel Pro35X cheap to run?
Yes. Its $45/yr running cost puts it at rank #73 of 519, below what most dehumidifier models we track cost to run.
How much does the Alorair Sentinel Pro35X cost per month?
About $3.74 a month, which is the $45 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 242 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $45 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Alorair Sentinel Pro35X for its size?
39th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_1145148_Sentinel Pro35X_01062025131807_3151971View certified dehumidifier listingsENERGY STAR data as of July 2026Alorair and Sentinel Pro35X are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.