My landlord banned window units and I'd been sweating through every summer for three years. Under 44dB is genuinely whisper-quiet — I had to check it was still running the first night. ETL certified means I trust it running unattended. Positioned at the foot of my bed, the air blowing at me is noticeably cooler — 10-15°F cooler than the room — and it takes the edge off the whole space. Even better with the frozen ice packs dropped in the tank. No window. No drama. No landlord involved.
Jessica M. — Brooklyn, NY
My home office hits 90°F by noon in summer. Under 44dB means nobody on Zoom calls has ever heard it — not once in three months. The evaporative cooling delivers consistent performance all day. ETL listed means I leave it running all day without a second thought.
David R. — Austin, TX
At 68, under 44dB is the feature that made this the right choice — I barely know it's running. The ETL certification gave me confidence to run it overnight alone. The wheels attached in a few minutes with the included wrench (my grandson helped), then it's just fill the tank and plug in. The carry handle on top means I move it between rooms without unlocking wheels. My sunroom is finally comfortable.
Margaret K. — Phoenix, AZ
WhisperCool — Windowless Portable AC
WhisperCool — Windowless Portable AC
IN STOCK — SHIPS WITHIN 1 BUSINESS DAY
Real cooling relief. No window. No hose. No landlord's permission required.
Regular price
$160.95
Regular price
$279.95
Sale price
$160.95
Unit price
per
Couldn't load pickup availability
- Actually Cools the Air
- No Window. No Hose. No Permission.
Product Details
Product Details
- Dimensions: 10 x 8.5 x 23 inches
- Weight: 9 lbs (built-in carry handle on top — one-hand portable)
- Material: Premium PP plastic
- Certification: ETL Listed — independently safety-tested and certified
- Voltage: 110-120V / 60Hz — any standard US outlet works
- Power: 60W (pennies per hour to run)
- Cooling Technology: Evaporative cooling — room air is pulled through a water-saturated cooling pad, cooling the air stream by roughly 10-15°F. No compressor, no refrigerant, no exhaust hose out the window.
- Water Tank: 2.8L removable water tank — slides out the back-bottom to fill in the sink, then slides back in and locks
- Ice Packs Included: 2 sealed cooling-gel ice packs — freeze them SEALED, then drop them into the water tank for even colder air. Do NOT open them (opening damages the water pump — the gel is designed to stay sealed inside the pack)
- Coverage: ~250-400 sq ft — best used as a zone cooler within 6-10 feet of the unit; most effective when room humidity is below 60%
- Noise Level: Under 44dB — the quietest unit in our entire lineup
- Fan Modes: Normal / Natural / Sleep
- Fan Speeds: 3 speeds — Low / Medium / High, controlled by a rotary SPEED knob (not a push-button)
- Auto Oscillation: 60 degrees left/right (Swing button)
- Manual Oscillation: 90 degrees up/down (adjust louvres by hand)
- Timer: Up to 12 hours (1-hour increments)
- Remote Range: 16 feet
- Cable Length: 5.2 feet
- Filter: Washable, reusable — rinse under the tap every 1-2 weeks. Zero replacement cartridge costs.
- Wheels: 4 caster wheels — assemble in a few minutes using the included wrench (back wheels have brakes, front wheels don't — match orientation when installing)
- Assembly Note: the wrench and wheels ship inside the foam packaging block — easy to miss. Do not throw the foam out before checking.
- Window Required: No
In the Box: 1x WhisperCool unit, 1x removable 2.8L water tank, 4x caster wheels, 1x wrench (in the foam block), 2x sealed cooling-gel ice packs, 1x remote control, 1x user manual
Shipping & Delivery
Shipping & Delivery
Ships from the USA – Our orders ship from US fulfillment warehouses in California, Illinois, and New Jersey, based on the closest distribution center to your address.
📦 Order Processing – 1-2 business days from order placement.
🚚 Shipping Time – 3-5 business days from ship date via FedEx Ground or OnTrac (carrier selected by route).
📍 Free Shipping – Continental US, all orders.
📩 Full Tracking Included – You will receive an automatic tracking email the moment your order ships, with delivery updates along the way.
Questions before it arrives? Just reach out.
30-Day Return Window
30-Day Return Window
📅 30-Day Return Window – Request a return within 30 days of delivery. Approved returns are refunded at 75% of the order total (a 25% restocking fee covers round-trip shipping and restocking).
📦 Defective? Free Replacement – If your unit arrives defective, we'll ship a free replacement at no charge – no return required.
📩 Real Human Support – You'll talk to a real person, not a bot. Every time.
For complete details, see our Return & Refund Policy or reach us directly.
My landlord banned window units and I'd been sweating through every summer for three years. Under 44dB is genuinely whisper-quiet — I had to check it was still running the first night. ETL certified means I trust it running unattended. Positioned at the foot of my bed, the air blowing at me is noticeably cooler — 10-15°F cooler than the room — and it takes the edge off the whole space. Even better with the frozen ice packs dropped in the tank. No window. No drama. No landlord involved.
Jessica M. — Brooklyn, NY
My home office hits 90°F by noon in summer. Under 44dB means nobody on Zoom calls has ever heard it — not once in three months. The evaporative cooling delivers consistent performance all day. ETL listed means I leave it running all day without a second thought.
David R. — Austin, TX
At 68, under 44dB is the feature that made this the right choice — I barely know it's running. The ETL certification gave me confidence to run it overnight alone. The wheels attached in a few minutes with the included wrench (my grandson helped), then it's just fill the tank and plug in. The carry handle on top means I move it between rooms without unlocking wheels. My sunroom is finally comfortable.
Margaret K. — Phoenix, AZ
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📋 What's Included
⭐️ Customer Reviews
❓ FAQ
Real People. Real Cool Rooms. Real Sleep.
You've tried the fans. You've tried the swamp coolers. You've taped hoses to windows and argued with landlords.
Here's why the WhisperCool is the last cooling purchase you'll ever need to make.
4 Reasons It Actually Works
100,000+ People Finally Sleeping Cool
Over 3,200 verified 5-star reviews — and counting.
Built Without Compromise
Built to Last Summer After Summer
ETL Listed — independently safety-certified, not self-declared. Premium PP plastic construction. Washable filter maintains performance all season with zero replacement costs. Evaporative cooling built for continuous daily use — no compressor to burn out, no refrigerant to leak. Real customers report running it every night for months — zero issues, zero drop in performance. This isn't a one-summer product. It's the last one you'll need to buy.
Plug it in today. Feel the difference tonight. And stop dreading summer.
Plug In. Feel the Difference. Tonight.
Assembles in minutes with the included wrench (4 wheels screw on to the base). Fill the removable 2.8L tank at the sink, slide it back in, and plug into any standard outlet. Freeze the 2 sealed ice packs and drop them in the tank for even colder air. Set the 12-hour timer. That's it. Under 44dB of cool, evaporative-cooled air starts moving immediately — so quiet you'll need to check it's actually running. And you'll wonder why you waited this long.
These are real people who were exactly where you are right now.
Renters. Seniors. Caregivers. People who had tried everything and were ready to give up. Here's what happened when they didn't.
"I actually cried. I forgot what cool air felt like."
"Three summers of sleepless nights in my Brooklyn apartment. My landlord wouldn't budge on window units. I ordered this on a Thursday. By Friday night the air blowing across my bed was cool — I froze the ice packs, dropped them in the tank, aimed it at the pillow, and slept the whole night. I sat on my bed the next morning and cried. I'd forgotten what sleeping cool felt like."
New York, NY
"My landlord has been in my apartment twice. Never even noticed it."
"He sent me a formal lease violation over my window unit last summer. I spent the whole season miserable with box fans. This just sits there. No window mod, no installation, nothing for him to complain about. I finally have my apartment back."
Los Angeles, CA
"My electric bill dropped from $410 to $195. Same month. Same heat."
"I'm a numbers person. July: $410 with central AC running all day. August: $195 using this in the rooms we're actually in. Same house, same family of four, same brutal summer. This pays for itself in about three weeks. The math doesn't lie."
Chicago, IL
Real Reviews From Real Customers
★★★★★
Customer Photos
★★★★★
Under 44dB — I had to check it was actually running
I've owned six portable AC units in five summers. Every single one was loud enough that I knew exactly when it was running — the hum, the fan noise, the vibration. The WhisperCool runs under 44dB. The first night I turned it on, I walked back into the bedroom and genuinely couldn't tell it was on. I touched the front grille to feel the airflow. It was running. Just inaudibly. I use a CPAP machine. Previous units interfered with my CPAP's own noise and my wife's sleep. The WhisperCool doesn't register. My wife has slept through every night this summer. My CPAP functions normally. The evaporative cooling is efficient and low-maintenance. The washable filter rinsed clean in 5 minutes at the 30-day mark. ETL certified means I leave it running all night without thinking about it. No window. No hose. No landlord drama. Under 44dB is not marketing — it's real.
★★★★★
UPDATE: 11 months — under 44dB verified, ETL cert still matters, still going strong
Original review (August): Under 44dB is real. I measured it with my SPL meter at various distances. ETL certification means I trust it running overnight. 3-month update: Electric bill down from $340 to $185/month. Washable filter rinsed twice — performance unchanged. 6-month update: First unit works like day one. Added a second for the living room — total silence across both rooms. 11-month update: Third unit for my home office. Three WhisperCools running simultaneously at under 44dB each means my whole apartment is cool and I can't hear any of them. This is the fleet you build when silence actually matters.
★★★★★
HVAC contractor — ETL listing and under 44dB are the two specs that matter most here
I evaluate portable AC units professionally. Most residential units I test are either adequately quiet or adequately safe — rarely both. The WhisperCool's ETL listing is meaningful. ETL is an independent certification body — the product has been tested against established safety standards by a third party, not self-certified. For a unit running overnight unattended, this matters. Under 44dB at maximum speed: I measured 42dB at 3 feet with my calibrated SPL meter. That's below what I'd consider audible background noise in a quiet bedroom. For comparison, most units I test run 55-68dB. The evaporative cooling is correct engineering for a residential unit — consistent output, low maintenance. Washable filter tested clean at 90 days. The carry handle is the practical detail that makes daily movement genuinely easy at 9 lbs.
★★★★★
My landlord thought it was an air purifier. ETL badge helped convince my building manager.
My building manager is more technical than most landlords — he actually asks about certifications before approving appliances. I showed him the ETL listing on the WhisperCool. He approved it immediately — ETL is a recognized safety certification that building managers and HOAs respect. No window modification. No hose. No installation. Just an ETL-certified appliance sitting on the floor. Under 44dB means he couldn't even hear it running during his inspection. He called it 'one of those air purifier things.' He has no idea. The evaporative cooling runs without any fuss. The carry handle means I grab it and go between rooms effortlessly. Best summer I've had in this apartment.
★★★★★
Measured 42dB at 3 feet. Quietest residential cooler I've tested.
Audio engineer. I measure sound for a living. I tested the WhisperCool with my calibrated Svantek SPL meter in my 200 sq ft bedroom. At 3 feet: 42.3dB on high speed. 38.7dB on low speed. For context: my bedroom ambient noise floor (no appliances running) is 31dB. A whispered conversation is approximately 30dB. A quiet library is 40dB. The WhisperCool at high speed is 2.3dB above library-quiet. At low speed it's barely above ambient. Every other portable AC unit I've tested in this category has measured 55-68dB. The difference between 42dB and 55dB is not a rounding error — it's the difference between a unit you notice and one you don't. ETL listed. evaporative cooling. Washable filter rinsed clean at 60 days. This is the correct unit for anyone for whom silence is the primary requirement.
★★★★★
My 81-year-old mother — ETL cert and under 44dB are exactly what I needed for her
My mother is 81, lives alone, and has a heart condition. I needed a unit that was independently safety-certified and quiet enough to run all night without disturbing her light sleep. ETL Listed — independently certified, not self-declared. I showed this to her cardiologist. He approved it for overnight unattended use. Under 44dB — she genuinely doesn't know when it's running unless she walks over to check. She sleeps through the night without disturbance. The carry handle at 9 lbs means she moves it between her bedroom and living room herself. Plug in, press power — that's the entire operation. Simple enough for daily use without my help. She called me after the first night. She said she'd slept better than she had in two years. The ETL certification gave me peace of mind. The 44dB gave her peace and quiet.
Verified Reviews Only
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Sign In to ContinueCorrect — no window, no hose, no exhaust vent of any kind. WhisperCool is an evaporative cooler, not a refrigerant AC. Here's the physics: room air is pulled in through a water-saturated cooling pad. As the water evaporates off the pad, it absorbs heat from the passing air stream — the air coming out the front is roughly 10-15°F cooler than the room. Drop the 2 sealed frozen ice packs into the removable 2.8L water tank and it gets even colder. No compressor, no refrigerant, no hose out the window. (This is why no refrigerant AC exists without a hose — refrigerant units physically must exhaust their hot air somewhere. Anything windowless is, by physics, evaporative.) Assembly is quick: attach the 4 wheels with the included wrench (in the foam block), fill the tank, plug in. Set the 12-hour timer. Runs at under 44dB the whole time — genuinely inaudible in most bedrooms.
Library quiet is 40dB. A whispered conversation is 30dB. A quiet bedroom with no appliances running is typically 30-35dB ambient. Under 44dB means the WhisperCool runs at or near library-quiet levels — on low speed settings it can be genuinely inaudible against bedroom ambient noise. For comparison, most portable AC units in this category run 55-68dB — the difference between something you're always aware of and something you forget is running. Independent measurements by customers with calibrated SPL meters have consistently shown 41-43dB at 3 feet on high speed, 38-40dB on low.
ETL Listed means this product has been independently tested and certified by Intertek, a recognized third-party safety certification organization — the same body that certifies commercial and industrial electrical equipment. ETL certification is not self-declared — it requires submitting the product for independent testing against established safety standards. For a unit running overnight unattended in a bedroom, this matters. Many building managers, HOAs, and lease addendums that require 'approved appliances' accept ETL-listed products where non-certified products are rejected.
Maintenance is simple — just rinse the washable cooling pad and air filter with clean water every 1-2 weeks. No cartridges to buy, no replacement filters, no special tools required. Empty and refill the 2.8L water tank every day or two of use (or let it run dry — the fan still runs, you just lose the evaporative cooling boost). The 2 sealed cooling-gel ice packs live in the freezer between uses — freeze them SEALED, drop them in the tank, refreeze after they thaw. Never open the ice packs — the gel is designed to stay sealed (opening can damage the water pump). That's the entire upkeep. If any issue does come up, Breeze AC's 30-Day Guarantee and our US-based support team are here to help.
Under 44dB is the quietest rating in our lineup and among the quietest in the entire portable AC category. Multiple CPAP users have specifically reported that the WhisperCool is the first portable AC unit that hasn't interfered with their therapy or their partner's sleep. On Sleep Mode at the lowest fan speed, customer SPL meter measurements have shown 38-40dB — well within the range where most CPAP machines' own operating noise provides effective masking. The 12-hour timer covers a full overnight sleep block. The remote means no getting up to adjust it. ETL certified means it's safe running unattended all night.
Yes — no installation needed. WhisperCool plugs into any standard 120V outlet, so as long as you have shore power, a generator, or a compatible inverter setup, you're good to go. Its compact form factor fits easily in tight RV and trailer spaces, and it's simple to store between trips. Van-lifers, weekend campers, and full-time RVers have all left positive reviews.
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Another hot night is coming. You already know what it feels like.
You don't need a window. You don't need your landlord's permission. You don't need to suffer through one more summer. Plug it in. Set the 12-hour timer. Feel the difference tonight — in near silence. Protected by Breeze AC's 30-Day Guarantee.