# The Best Dehumidifier and Humidifier Combos — Plus the Real Difference Between Them

> Summer wants the water out; winter wants it back. Here's how to get year-round control without two machines fighting each other.

Canonical: https://www.enthusiastreview.com/best/best-dehumidifier-humidifier-combo/
Last updated: 2026-11-05
Published: 2026-11-05
Category: Size & Features
Publisher: Enthusiast Review

Shopping for a **dehumidifier humidifier combo** usually starts with a simple wish: one machine that keeps the house comfortable all year. Before you buy, it helps to know the difference between a dehumidifier and a humidifier, because they do exactly opposite jobs. A dehumidifier pulls water vapor *out* of the air to stop dampness, condensation and musty smells. A humidifier puts water vapor *into* the air to ease dry skin, static shocks and cracked wood in winter.

Here's the honest part: a single box that does both jobs well is rare. Most "2-in-1" listings turn out to be a dehumidifier with an air purifier bolted on, and the few true dual-mode units come from little-known brands with thin track records. What actually works is a *matched pair* — either two whole-house units run from one controller, or two portables set to targets that don't overlap. Below are the pieces we'd build that combo from, and how to set them up so they cooperate instead of compete.

## Our top picks

- **Best whole-house dehumidifier:** Aprilaire E100 — [check price on Amazon](https://www.amazon.com/dp/B0DG3RJ1W5?tag=sktiger-20&linkCode=ll1)
- **Best whole-house humidifier:** Aprilaire 700 — [check price on Amazon](https://www.amazon.com/dp/B00DJVISBK?tag=sktiger-20&linkCode=ll1)
- **Best budget whole-house humidifier:** Honeywell HE280 — [check price on Amazon](https://www.amazon.com/dp/B00GPJ46N2?tag=sktiger-20&linkCode=ll1)
- **Best portable dehumidifier:** Midea Cube 35 — [check price on Amazon](https://www.amazon.com/dp/B0GL7QLD49?tag=sktiger-20&linkCode=ll1)
- **Best portable humidifier:** Levoit OasisMist 450S — [check price on Amazon](https://www.amazon.com/dp/B0B1DQ8KV3?tag=sktiger-20&linkCode=ll1)

For a true set-it-and-forget-it combo, the **Aprilaire E100** paired with an Aprilaire 700 humidifier is the best whole-home setup; renters and single-room shoppers should pair a Midea Cube 35 with a Levoit OasisMist 450S.

## 1. Aprilaire E100 Whole-House Dehumidifier — Best whole-house dehumidifier

[Check price on Amazon](https://www.amazon.com/dp/B0DG3RJ1W5?tag=sktiger-20&linkCode=ll1)

**Pros**

- Rated for homes up to about 5,500 sq ft
- Ducts into existing HVAC or runs stand-alone
- ENERGY STAR certified
- Pairs naturally with an Aprilaire humidifier

**Cons**

- Needs professional installation in most homes
- Drains by gravity; a pump is extra if there's no drain nearby

**Why we picked it:** The dehumidifying half of a whole-house combo has to be big, quiet and out of sight, and the E100 checks all three. Because it ties into your ductwork, it dries every room on the system instead of one corner of the basement.

**Performance:** Aprilaire rates it at 100 pints a day for homes up to roughly 5,500 square feet, with a five-year warranty. Owners' most common complaint is installation cost, which can rival the unit itself. See how it compares with ducted rivals in our [best whole house dehumidifier](https://www.enthusiastreview.com/best/best-whole-house-dehumidifier/) guide.

**Worth knowing:** Ask your installer to wire the humidifier and dehumidifier to the same humidity control so only one can run at a time.

| Spec | Value |
| --- | --- |
| Capacity | 100 pints/day (AHAM) |
| Coverage | Up to about 5,500 sq ft |
| Type | Ducted or stand-alone |
| Efficiency | ENERGY STAR |
| Warranty | 5 years |

## 2. Aprilaire 700 Fan-Powered Whole-House Humidifier — Best whole-house humidifier

[Check price on Amazon](https://www.amazon.com/dp/B00DJVISBK?tag=sktiger-20&linkCode=ll1)

**Pros**

- Built-in fan, so no bypass duct is needed
- Automatic control adjusts for outdoor temperature
- One water panel per season is the main upkeep
- Sized for large homes

**Cons**

- Needs a water line and drain at the furnace
- Only works while the furnace blower runs

**Why we picked it:** Winter is when a dehumidifier sits idle and the house dries out. The 700 is the winter half of the combo: it mounts on the furnace, adds moisture to the air going to every room, and its automatic control eases off on frigid nights so windows don't fog.

**Performance:** Aprilaire rates it at up to about 18 gallons a day for homes up to roughly 4,200 square feet. Because it has its own fan, it doesn't need the extra bypass duct that the cheaper [Aprilaire](https://www.enthusiastreview.com/best/best-aprilaire-dehumidifier/) 600 requires. Owners report the main chore is swapping the No. 35 water panel once a heating season, more often with hard water.

| Spec | Value |
| --- | --- |
| Type | Fan-powered evaporative |
| Output | Up to about 18 gal/day |
| Coverage | Up to about 4,200 sq ft |
| Control | Automatic, outdoor-temp sensing |
| Media | Water Panel No. 35 |

## 3. Honeywell HE280 Bypass Whole-House Humidifier — Best budget whole-house humidifier

[Check price on Amazon](https://www.amazon.com/dp/B00GPJ46N2?tag=sktiger-20&linkCode=ll1)

**Pros**

- Simple bypass design with few moving parts
- Widely stocked by HVAC suppliers
- Works with Honeywell Home humidity controls

**Cons**

- Needs a bypass duct between supply and return
- Less output than a fan-powered or steam unit

**Why we picked it:** If your furnace closet has room for a bypass duct, the HE280 is a lower-cost way to add the humidifying half of a whole-house combo. It's a familiar part to most HVAC techs, which keeps service simple.

**Performance:** A bypass humidifier uses the furnace's own airflow to push air across a wetted pad, so there's no extra motor to fail. The trade-off is output: in a very large or leaky house it may not reach your winter target. Pair it with a ducted dehumidifier like the E100 or a [ducted dehumidifier](https://www.enthusiastreview.com/best/best-ducted-dehumidifier/) from another brand for the summer half.

| Spec | Value |
| --- | --- |
| Type | Bypass evaporative |
| Mounting | Supply or return plenum |
| Upkeep | Replace pad each season |
| Control | Wall humidistat or compatible thermostat |
| Best for | Budget whole-home setups |

## 4. Midea Cube 35-Pint Dehumidifier — Best portable dehumidifier

[Check price on Amazon](https://www.amazon.com/dp/B0GL7QLD49?tag=sktiger-20&linkCode=ll1)

**Pros**

- Set an exact humidity target, not just a fan speed
- Large tank in the base, or switch to a hose
- Wi-Fi app shows room humidity remotely
- Compact cube footprint

**Cons**

- Treats one area, not the whole house
- Pricier per pint than a basic box

**Why we picked it:** For a portable combo, the dehumidifier needs a humidistat you can trust to stop at a number — otherwise it'll fight the humidifier all spring and fall. The Cube 35 holds a set percentage and reports it in the app, which makes it easy to see both machines are staying in their lanes.

**Performance:** It's rated at 35 pints a day under the 2019 DOE test, a good fit for a damp living area, bedroom suite or modest basement. The stacked tank lifts out as one piece, and a gravity hose skips emptying entirely. Bigger and smaller siblings are in our [best Midea dehumidifier](https://www.enthusiastreview.com/best/best-midea-dehumidifier/) guide.

| Spec | Value |
| --- | --- |
| Capacity | 35 pints/day (DOE 2019) |
| Humidistat | Digital, set % target |
| Drainage | Tank or gravity hose |
| Smart control | Wi-Fi app |
| Best for | Summer half of a portable combo |

## 5. Levoit OasisMist 450S Smart Humidifier — Best portable humidifier

[Check price on Amazon](https://www.amazon.com/dp/B0B1DQ8KV3?tag=sktiger-20&linkCode=ll1)

**Pros**

- Warm or cool mist
- Auto mode uses a built-in humidity sensor
- Top-fill 4.5-liter tank
- App control and scheduling

**Cons**

- Ultrasonic mist can leave white dust with hard water
- Tank needs regular cleaning

**Why we picked it:** A good humidifier for a combo setup needs the same thing as the dehumidifier: a sensor and a target. The OasisMist's auto mode adds moisture until the room reaches your set level and then backs off, so it won't keep misting into a room your dehumidifier is trying to dry.

**Performance:** It's an ultrasonic unit with a 4.5-liter tank and both warm- and cool-mist settings; warm mist can help it reach a target faster in a chilly bedroom. Owners like the top-fill design and app scheduling. Use distilled or demineralized water if your tap water is hard, and see our [dehumidifier vs. humidifier](https://www.enthusiastreview.com/guides/dehumidifier-vs-humidifier/) guide for when each one earns its keep.

| Spec | Value |
| --- | --- |
| Type | Ultrasonic, warm and cool mist |
| Tank | 4.5 liters |
| Humidistat | Built-in sensor, auto mode |
| Smart control | Wi-Fi app |
| Best for | Winter half of a portable combo |

## Year-round humidity, by the numbers

- **30–50%** — Indoor relative humidity range the EPA recommends
- **60%** — Level the EPA says to stay below to discourage mold growth
- **2 seasons** — Most four-season homes need moisture removed in summer and added in winter

Summer humidity pushes most homes above that band; winter heating drags many below it. One machine can only push in one direction.

## What's the difference between a dehumidifier and a humidifier?

The short version: a dehumidifier removes moisture, a humidifier adds it. A typical compressor dehumidifier draws air across a cold coil, condenses water vapor into a tank or hose, and blows the drier air back out slightly warmer. A humidifier does the reverse — it evaporates, boils or atomizes water from a tank or water line into the room. Our deeper [dehumidifier vs. humidifier](https://www.enthusiastreview.com/guides/dehumidifier-vs-humidifier/) guide covers health questions; here's the side-by-side.

|  | Dehumidifier | Humidifier |
| --- | --- | --- |
| Job | Removes water vapor | Adds water vapor |
| Main season | Spring through early fall | Heating season |
| Signs you need it | Musty smell, condensation, humidity over 60% | Static shocks, dry skin, gapping wood, humidity under 30% |
| How it works | Cold coil (or desiccant) pulls water out | Wick, ultrasonic plate or steam puts water in |
| Water handling | Collects water — empty or drain it | Consumes water — fill it or plumb it |
| Main upkeep | Wash the filter, empty or drain | Clean the tank, replace pad or wick |

*If you can't tell which side of the line you're on, a $15 hygrometer will answer it in a day.*

## How we pick dehumidifier and humidifier combos

We don't run a lab. We compared manufacturer ratings (pints per day under the 2019 DOE or AHAM test for dehumidifiers, gallons per day and coverage for humidifiers), ENERGY STAR listings, installation manuals and control compatibility, then read owner reviews for recurring failures — leaking reservoirs, sensors that drift, controls that let both machines run at once.

We left all-in-one units off because we couldn't find one from an established brand with published ratings for *both* functions.

## What to look for in a humidifier and dehumidifier setup

- **A real humidistat on both machines:** Each unit should stop at a set percentage. Fan-speed-only models can't share a room politely. Our [humidistat settings guide](https://www.enthusiastreview.com/guides/dehumidifier-humidistat-settings-guide/) has seasonal targets.
- **A gap between the two targets:** Set the dehumidifier to start around 50% and the humidifier to stop around 35–40%. That dead band keeps them from cycling against each other.
- **One controller, if you go whole-house:** A thermostat or wall control that manages both — and locks out one while the other runs — is the single most important part of a ducted combo.
- **Right-sized capacity:** Size the dehumidifier to your dampest space and the humidifier to your total heated square footage. A whole-house humidifier rated for a smaller home simply won't keep up.
  - Whole home: a ducted dehumidifier plus a furnace-mounted humidifier
  - Single room: a 20–35 pint portable plus a 4–6 liter tabletop humidifier
- **Easy water handling:** The dehumidifier needs somewhere to send water; the humidifier needs a steady supply. Plumbed whole-house units solve both; portables mean emptying one tank and filling another.

## Is there a humidifier and dehumidifier in one?

A few exist, but they're harder to build well than they sound. Removing moisture takes a refrigeration circuit or a desiccant wheel; adding it takes a water reservoir and a wick, ultrasonic plate or heater. Cramming both into one portable cabinet means a small tank for each job and a lot of compromises, and the ones we found online come from little-known sellers with sparse specs.

### What "2-in-1" usually means

- **Dehumidifier + air purifier:** the most common 2-in-1. Useful in a damp, dusty room, but it can't add moisture. See our [dehumidifier and air purifier combo](https://www.enthusiastreview.com/best/best-dehumidifier-air-purifier-combo/) guide.
- **True dual-mode units:** rare, small and mostly from marketplace brands. Check the rated output for *each* mode before you trust the label.

> **Where real combos live:** The genuine dehumidifier humidifier combo is a whole-house HVAC setup: a humidifier on the furnace and a ducted dehumidifier, both governed by one humidity control. That's the setup our top picks are built around.

## Whole house humidifier and dehumidifier: how the pairing works

In a ducted home, the humidifier mounts on the furnace supply or return plenum and feeds moisture into heated air during winter. The dehumidifier connects to the return and supply ductwork (or a dedicated return) and dries air during the cooling season and shoulder months. A compatible thermostat or wall control watches indoor humidity and calls for whichever one is needed.

### Choosing the humidifier type

- **Bypass (like the Honeywell HE280):** cheapest, simplest; needs a bypass duct and has the lowest output.
- **Fan-powered (like the Aprilaire 700):** no bypass duct and more output; still relies on the furnace running.
- **Steam:** highest output and works even when the furnace isn't heating; costs the most to buy and run.

Expect a licensed HVAC contractor for both halves, since each needs duct work, drain lines and low-voltage wiring. Our [whole-house dehumidifier installation](https://www.enthusiastreview.com/guides/whole-house-dehumidifier-installation/) guide walks through what that job involves.

## Running a portable humidifier and dehumidifier in one home

1. **Measure first.** Put a hygrometer in the room for a few days. If humidity sits between 35% and 50%, you may not need either machine running right now.
2. **Give each machine a season.** In most climates the dehumidifier runs from late spring to early fall and the humidifier from late fall through winter.
3. **Set non-overlapping targets.** Dehumidifier at 50%, humidifier at 35–40%. Never set them closer than about 10 points.
4. **Keep them apart if both must run.** In a split-level house, a damp basement may need a dehumidifier while an upstairs bedroom needs a humidifier — that's fine as long as they're in different zones with doors closed.

## The bottom line

If you own a ducted home, the best dehumidifier humidifier combo is a matched pair — the **Aprilaire E100** for summer and the **Aprilaire 700** (or the budget **Honeywell HE280**) for winter — on one humidity control. In an apartment or single room, a **Midea Cube 35** plus a **Levoit OasisMist 450S** does the same job with a 10-point gap between their targets. Skip the all-in-one gadgets until a major brand makes one that's rated for both jobs.

## Frequently asked questions

### What's the difference between a dehumidifier and a humidifier?

A dehumidifier removes moisture from the air to fix dampness, condensation and musty smells. A humidifier adds moisture to ease dry skin, static and dry sinuses. Most homes need a dehumidifier in humid months and a humidifier during heating season.

### Is there a humidifier and dehumidifier in one?

A handful of dual-mode portables are sold online, mostly by little-known brands with limited specs for each mode. For dependable year-round control, a matched pair — either whole-house units on one control or two portables with separate targets — works better.

### What is the best humidifier dehumidifier combo?

For a ducted home, the Aprilaire E100 dehumidifier paired with an Aprilaire 700 humidifier on a shared humidity control. For a single room or apartment, a Midea Cube 35 dehumidifier with a Levoit OasisMist 450S humidifier.

### Can you run a humidifier and dehumidifier at the same time?

Not in the same room — they'll cancel each other out and waste power. In different zones of the house it can make sense, for example a dehumidifier in a damp basement and a humidifier in a dry upstairs bedroom.

### Is a 2 in 1 air purifier and dehumidifier worth it?

It can be in a small, damp, dusty room, but it doesn't humidify, and most combos are modest on both jobs. In larger rooms a dedicated dehumidifier plus a separate HEPA purifier usually performs better.

### Do I need a whole house humidifier and dehumidifier?

If your home regularly goes above 60% humidity in summer and below 30% in winter, and you have forced-air ductwork, a whole-house pair is the most hands-off solution. If only one or two rooms are a problem, portables are far cheaper.

## Related guides

- [Dehumidifier vs. Humidifier: Which One Does Your Home Actually Need?](https://www.enthusiastreview.com/guides/dehumidifier-vs-humidifier/)
- [The Best Whole-House Dehumidifiers](https://www.enthusiastreview.com/best/best-whole-house-dehumidifier/)
- [The Best Dehumidifier and Air Purifier Combos](https://www.enthusiastreview.com/best/best-dehumidifier-air-purifier-combo/)
- [The Best Aprilaire Dehumidifiers: E070, E080, E100 and E130](https://www.enthusiastreview.com/best/best-aprilaire-dehumidifier/)
- [What Should Your Dehumidifier Humidistat Be Set To?](https://www.enthusiastreview.com/guides/dehumidifier-humidistat-settings-guide/)
- [Whole-House Dehumidifier Installation: What to Expect](https://www.enthusiastreview.com/guides/whole-house-dehumidifier-installation/)

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*Enthusiast Review researches products against DOE ratings, ENERGY STAR data, manuals, CPSC recalls and owner reviews; it does not run a test lab. Amazon links are affiliate links (tag sktiger-20).*