Honeywell HEV615 vs HEV620

Choose the Honeywell HEV620B if you want a numerical humidity setting, a room-humidity display and a shutoff timer. Choose the HEV615W if you prefer push buttons and indicator lights; it also has a humidistat that cycles the fan automatically. Both use the same 1.7-gallon (6.4-liter) tank capacity and HFT600/Filter T wick, so our preference for the digital model is about controls.

Quick picks and comparison

• Our pick for visible settings: HEV620B. Choose it when seeing the setpoint matters more than keeping the panel simple.
• Our pick for indicator-light controls: HEV615W, white. Choose it when an automatic humidity-reached indicator is enough.
• First spare for either: HFT600 Filter T. One wick comes with each tower; a spare is for the first replacement.

Compare specifications and all conditions

Control panel

HEV615W

Push buttons and indicator lights

HEV620B

Digital humidity display

Humidity adjustment

HEV615W

Five settings listed on its product page; no numerical readout

HEV620B

Manual specifies 30–69%, plus LO/HI; webpage conflict explained below

At the humidity target

HEV615W

Fan stops; restarts when humidity falls

HEV620B

Fan stops; restarts when humidity falls

Shutoff timer

HEV615W

Not listed in its control panel

HEV620B

4, 8 or 12 hours

Fan speeds

HEV615W

Three

HEV620B

Three

Tank capacity

HEV615W

1.7 gal / 6.4 L

HEV620B

1.7 gal / 6.4 L

Refilling

HEV615W

Pitcher at the tower, or removable tank at the sink

HEV620B

Pitcher at the tower, or removable tank at the sink

Replacement wick

HEV615W

HFT600 / Filter T; one included

HEV620B

HFT600 / Filter T; one included

Dimensions, W × L × H

HEV615W

8.70″ × 9.80″ × 24.70″

HEV620B

8.70″ × 9.80″ × 24.70″

Maker's room-size description

HEV615W

Large; no square-foot figure on this page

HEV620B

Large; no square-foot figure on this page

Claimed runtime

HEV615W

Up to 24 hours

HEV620B

Up to 24 hours

Full comparison table ↔

Swipe to compare. Row labels stay visible.

Buying detail	HEV615W	HEV620B
Control panel	Push buttons and indicator lights	Digital humidity display
Humidity adjustment	Five settings listed on its product page; no numerical readout	Manual specifies 30–69%, plus LO/HI; webpage conflict explained below
At the humidity target	Fan stops; restarts when humidity falls	Fan stops; restarts when humidity falls
Shutoff timer	Not listed in its control panel	4, 8 or 12 hours
Fan speeds	Three	Three
Tank capacity	1.7 gal / 6.4 L	1.7 gal / 6.4 L
Refilling	Pitcher at the tower, or removable tank at the sink	Pitcher at the tower, or removable tank at the sink
Replacement wick	HFT600 / Filter T; one included	HFT600 / Filter T; one included
Dimensions, W × L × H	8.70″ × 9.80″ × 24.70″	8.70″ × 9.80″ × 24.70″
Maker's room-size description	Large; no square-foot figure on this page	Large; no square-foot figure on this page
Claimed runtime	Up to 24 hours	Up to 24 hours

Buying detail	HEV615W	HEV620B
Control panel	Push buttons and indicator lights	Digital humidity display
Humidity adjustment	Five settings listed on its product page; no numerical readout	Manual specifies 30–69%, plus LO/HI; webpage conflict explained below
At the humidity target	Fan stops; restarts when humidity falls	Fan stops; restarts when humidity falls
Shutoff timer	Not listed in its control panel	4, 8 or 12 hours
Fan speeds	Three	Three
Tank capacity	1.7 gal / 6.4 L	1.7 gal / 6.4 L
Refilling	Pitcher at the tower, or removable tank at the sink	Pitcher at the tower, or removable tank at the sink
Replacement wick	HFT600 / Filter T; one included	HFT600 / Filter T; one included
Dimensions, W × L × H	8.70″ × 9.80″ × 24.70″	8.70″ × 9.80″ × 24.70″
Maker's room-size description	Large; no square-foot figure on this page	Large; no square-foot figure on this page
Claimed runtime	Up to 24 hours	Up to 24 hours

Table sources: Honeywell's HEV615 page, HEV620 page and shared US manual, particularly printed pages 5–10. The runtime is a manufacturer maximum: the manual says higher output uses water faster.

Best for a visible humidity setting: Honeywell HEV620B

The digital model makes the choice more explicit. Adjust the humidity arrows and the screen briefly shows the set humidity, then returns to the current reading. The manual specifies a 30–69% setting range, with LO and HI beyond those limits. It also cautions that the display measures humidity at the humidistat sensor; the reading elsewhere in the room can differ. For a separate reading, see our indoor humidity and hygrometer guide.

At the target, HUMIDITY REACHED appears and the fan stops. It restarts when humidity falls below the target. The timer allows 4, 8 or 12 hours: humidity cycling continues during that period, but the unit powers off when time expires. Switching it off manually resets the timer. This suits someone who wants a defined operating window without watching the tank.

See the HEV620B and buying options at Honeywell.

Best for indicator-light controls: Honeywell HEV615W

The HEV615 is a push-button model, not a rotary-dial model. Honeywell lists five humidity settings and three fan speeds. The manual's setup method is to run it for at least an hour, or until the room feels comfortable, then lower the humidity control until the blue Humidity Reached light illuminates and the unit stops. It subsequently cycles to maintain that setting.

Choose this if that feedback is enough; choose the HEV620 if you want to see a percentage. The HEV615's simpler panel still includes a filter-check indicator and an empty-tank refill indicator. It is not a continuously running fan with only an output selector.

Both models remember programmed settings when switched off with the power button, but unplugging resets them to defaults. Do not assume a switched outlet will preserve your chosen setup.

See the HEV615 and select the white variant at Honeywell.

Exact variants and the included float

The current HEV615 page lists HEV615B/W and provides a white variant; our manual-control pick is HEV615W. The digital product page specifies HEV620B. The shared manual covers the HEV615 and HEV620 series, so a family name alone is insufficient when checking the delivered carton. Do not infer current availability of another digital suffix from family artwork.

For matching the maker's buying widgets, the white HEV615 variant carries EAN 0328785206159; HEV620B carries 0328785406207. These are product identifiers, not Amazon listing IDs. Match the full suffix and control panel as well.

Both exact-model product pages require installing the float paddle before use. It operates the tank plunger so water can feed into the reservoir; it is an operating component, not an optional filter accessory. Find it among the packaging before discarding anything. The manual labels a float rod and paddle, but does not give a standalone service-order code. If either is missing or damaged, use Honeywell Consumer Relations with the full model suffix; do not order a generic float by appearance.

The manual's installation sequence is: remove the tank, align the paddle with its shape in the reservoir, press the rod into the brackets until it clicks, gently check retention, then replace the tank. Incorrect placement can cause leaking or prevent water feeding.

1. 1

   Remove the tank

   Locate the supplied float paddle and align it with the reservoir's matching shape.

2. 2

   Secure the rod

   Press it into the brackets until it clicks, then gently check that it stays attached.

3. 3

   Replace the tank

   Confirm the float is seated before adding water.

Refilling, carrying and cleaning

Both tanks can be filled in place with cool water from a pitcher, or pulled forward by the handle and carried to a sink. The cover can stay on during filling, but must be in place during operation. Pour into the tank, not the grille, and avoid overfilling. For a full tank, the manual requires two hands: one on the handle and one underneath. Prefer pitcher filling if carrying a full tank would be awkward.

Honeywell recommends weekly cleaning and separate scale-removal and disinfecting procedures. Remove the wick first; neither vinegar nor bleach solution belongs on it. The housing unlocks from the base to expose the reservoir. After cleaning, secure the float rod again before reinstalling the tank and filter cartridge. Follow the manual's complete cleaning sequence rather than pouring cleaner through an assembled tower.

EPA's humidifier care guidance is more frequent for portable units: empty, wipe dry and refill daily, and clean every third day. Account for that upkeep when deciding whether either tower suits your routine.

The wick order: HFT600, also called Filter T

Honeywell's separate HFT600 page confirms compatibility with both families and one replacement wick per package. Each tower's page separately confirms one included. Buy the tower plus an HFT600 spare if you want the first replacement ready; a spare float is not part of the normal consumables order.

The wick sits inside a reusable filter cartridge. Pull the cartridge handle up slowly to let water drain, open its door and replace the wick. Honeywell recommends turning the wick top-to-bottom at each refill. Replace it every 30–60 days depending on water quality and usage, or sooner if hard and crusty, odorous or producing less moisture; hard water can shorten the interval. Do not wash it with soap, vinegar or chemical solutions.

The orange Check Filter light on both models is a 30-day reminder, not a measurement of remaining wick life. Hold the Check Filter button for 2 seconds to reset it; unplugging starts the counter over. Inspect the wick even if the reminder has not illuminated.

• Yes: HFT600 / Filter T is specified for both tower families.
• Yes: One wick is included with each tower; retain the reusable cartridge.
• Yes: The supplied float must be installed and retained after cleaning.
• No: Soap, vinegar and chemical solutions are unsuitable for cleaning the wick.

Bedroom sound and whole-house sizing

Honeywell says lower output runs quieter and uses water more slowly. Neither product page nor the shared manual supplies a decibel rating, so we cannot rank one as the quieter bedroom evaporative humidifier. Both stop the fan at the humidity target: expect cycling rather than assume uninterrupted fan sound. The HEV615 also has indicator lights, so choosing it does not establish a dark panel.

For placement, the manual specifies a firm, flat, waterproof surface at least four feet from the bedside and twelve inches from walls, out of reach of children and pets. Both are rated 120 V, 60 Hz, 43 Watts; plug directly into the outlet as instructed, without an extension cord or power strip.

Neither maker page gives square-foot coverage or a documented whole-house result. “Large” and “up to 24 hours” do not tell you how well a distant room will be served. EPA describes central whole-house humidifiers as equipment built into heating and air-conditioning systems. Regard these towers as room-level choices; use our large-room humidifier guide when sizing is the deciding issue. Our evaporative versus ultrasonic guide covers the technology choice. Here, invisible moisture is normal: both use a fan and saturated wick despite “Cool Mist” wording in the HEV620 marketing copy.

How we choose

This comparison is based on Honeywell's product pages, matching US manual and separate Filter T documentation, checked November 2, 2026. We compared controls, refill access, required setup parts and replacement routines, using EPA for the portable/central distinction and care guidance. The recommendations are editorial judgments from those documents; we have no physical-test or comparative noise results. See how we choose.

Verdict

Get the HEV620B for a visible humidity setpoint and timer, or the white HEV615W for push-button control with a humidity-reached light. Order HFT600/Filter T for either one's first replacement and check that the supplied float is present before setup. The digital model wins on control visibility; the shared tank capacity and wick give no reason to choose it for a larger refill capacity.

Sources

• Honeywell: HEV615 product page and white variant, HEV620B product page and their linked US owner's manual, A008170R1.
• Honeywell: HFT600 / Filter T fit and replacement instructions, humidifier support and Consumer Relations.
• EPA: Use and Care of Home Humidifiers.