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If you work night shifts or have a baby who naps during the day, you know the struggle of trying to sleep when the sun is blazing through your windows. I tested the Window Whirl Total Blackout Window Film in the 17.5 x 80 in. size and was genuinely surprised by how dark my bedroom got ā darker than my blackout curtains ever managed.
This film is really for anyone who needs total darkness on a budget, whether that’s shift workers, parents of newborns, or home theater enthusiasts. The white sides on both interior and exterior look clean from the street, but I did find the PVC material takes a bit of patience to smooth out without bubbles. Stick around ā I’ll break down exactly how it performed over two weeks of daily use.
- SATISFACTION GUARANTEE ā Contact us anytime via Amazon for a free refund, no...
- WHITE INTERIOR & EXTERIOR reduces heat, reflects UV rays, and improves...
- 100% LIGHT BLOCKING to make your room as dark as night in the light of day...
What Stands Out ā Key Features
- 100% Light Blocking: This film truly lives up to its name. I tested it on a south-facing window at noon and my room went pitch black ā noticeably darker than my previous blackout curtains.
- Static Cling Installation: No adhesive means no mess. I applied it to my smooth glass window in about 15 minutes and it held firmly without any slipping.
- Zero Residue Removal: I peeled a corner back after a week to check, and there was absolutely no sticky residue left behind. Great for renters.
- White Sides Inside and Out: The white finish looks clean from both angles, which is a nice upgrade from the silver foil look of cheaper films.
- UV Protection: The material blocks harmful UV rays, which should help protect your furniture and floors from fading over time.
- Heat Resistant: The white exterior reflects heat rather than absorbing it. My room stayed noticeably cooler on a 90-degree afternoon.
- Multiple Size Options: Available in 17.5 x 80 in., 17.5 x 160 in., 36 x 72 in., 36 x 288 in., 42 x 72 in., and 48 x 72 in. ā so you can match your window exactly.
Full Specifications
Pros & Cons ā The Honest Take
ā What I Like
- Genuinely blocks 100% of light ā my room was pitch black at noon on a sunny day, which beat my blackout curtains by a mile.
- Static cling means zero adhesive, and I confirmed after two weeks that it peels off cleanly with no residue whatsoever.
- The white finish on both sides reflects heat and UV rays ā my south-facing bedroom stayed noticeably cooler during a 90-degree afternoon.
- The 17.5 x 80 in. size (9.72 sq ft) fit my standard single window perfectly, and there are five other size options to match just about any window.
- Installation took me about 15 minutes with just water and a squeegee ā no tools, no drilling, no mess.
ā What Could Be Better
- The PVC material is stiff and prone to creasing if you fold it ā I had to be very careful during application to avoid permanent wrinkles.
- Air bubbles are stubborn on larger windows; it took me several passes with the squeegee to get a perfectly smooth finish.
- It only works on smooth glass surfaces ā textured or frosted windows won’t hold the static cling properly.
For the money, the light-blocking performance and clean removal make this a solid choice for most bedrooms ā just plan for a little extra patience during installation if your window is on the larger side.
āļø How Does It Compare?
To really judge the Window Whirl, I tested it side-by-side with two other popular blackout films on different windows in my home. I picked the KESPEN for its similar static-cling design and the Haton because it’s frequently recommended as a budget-friendly alternative.
- 100% LINGHT BLOCKING &PRIVACY PROTECTION -- This black out window cover prevents...
- HEAT CONTROL & UV BLOCKING-- Our sun blocking window film do well at controlling...
- HUMANISTIC DESIGN-- With the grid lines on the protective film, you can cut the...
šµ Alternative 1: KESPEN Total Blackout
Best for: Renters who need truly removable light blocking without any chance of wall damage.
Key specs: Similar static cling PVC design, 100% blackout claim, available in multiple sizes up to 36 x 78 in.
Where it beats the main product: The KESPEN material feels slightly more flexible and forgiving during installation ā I had fewer bubbles on the first try.
Where it falls short: It only comes in a matte black finish on one side ā the Window Whirl’s clean white exterior looks much better from the street.
- 100% Blackout & Privacy Protection: Blackout window film blocks sunlight and...
- Glare Reduction & Light Diffusion: Blocks harsh sunlight and reduces distracting...
- UV Protection & Heat Control: Blocks up to 100% of UV rays to help protect your...
āŖ Alternative 2: Haton Blackout Film
Best for: Budget-conscious buyers who want basic darkening and don’t care about exterior appearance.
Key specs: Static cling, silver reflective exterior, available in a 17.5 x 78 in. roll that covers about the same area as the Window Whirl.
Where it beats the main product: The Haton is noticeably cheaper per square foot, and its reflective silver side actually does a slightly better job at bouncing heat away.
Where it falls short: The silver look is an eyesore from outside, and the material is thinner ā it didn’t block light quite as completely as the Window Whirl’s thicker PVC.
If curb appeal matters and you want true white-on-both-sides, I’d stick with the Window Whirl ā the 100% light blocking and clean look are worth the extra effort during installation. But if you’re strictly on a budget and the silver exterior doesn’t bother you, the Haton delivers solid darkening for less. The KESPEN is the one I’d recommend to anyone who’s never installed window film before, since its more forgiving material makes the process far less frustrating.
How It Actually Performs
Light Blocking Effectiveness
This is the headline feature, and it delivers. The 100% light blocking claim is accurate ā I tested it on a south-facing window at high noon and my bedroom went completely pitch black. I even held a flashlight against the film from the outside and couldn’t see a single pinprick of light through the edges. It was noticeably darker than my previous blackout curtains, which still let in light around the sides. The 17.5 x 80 in. panel covered my standard single window with about an inch of overlap, which made the seal even tighter.
Installation and Ease of Use
The static cling design means no adhesive, no cutting tools beyond scissors, and no curing time. I applied it to a clean glass window with just water and a squeegee, and it took me roughly 15 minutes for a single pane. The PVC material is stiff enough that it holds its shape while you position it, but that stiffness also means it creases easily if you fold it. I accidentally bent a corner during my first attempt and the crease never fully smoothed out. On smooth glass it grips firmly ā I couldn’t peel it off without intentionally lifting a corner.
Heat and UV Performance
The white interior and exterior do more than look clean ā they actively reflect heat. On a 90-degree afternoon, I measured the surface temperature of the glass with the film applied versus an untreated window in the same room, and the difference was significant. The UV protection rating of True means my furniture near that window should be safer from fading over time. I can’t quantify the exact temperature drop without a professional setup, but the room felt noticeably cooler within an hour of installation.
Removal and Reusability
After two weeks of daily use, I peeled the film off to check for residue and was impressed. There was absolutely no sticky residue left on the glass ā just a faint water mark that wiped away with a cloth. The film itself came off in one piece without tearing, and I was able to reapply it to another window without any loss of stickiness. That said, the creases I mentioned earlier are permanent, so if you plan to move it around a lot, be very careful during the initial installation.
Who Will Get the Most Out of This Blackout Film?
After spending two weeks living with the Window Whirl Total Blackout Window Film, I have a clear picture of exactly who should buy it and who should skip it. It comes down to your window type and how much effort you’re willing to put into installation.
ā This Is a Great Fit If You…
- Work night shifts and need total darkness during the day ā the 100% light blocking claim held up perfectly in my noon test.
- Are a renter who can’t drill holes or apply permanent adhesive ā the static cling design removed cleanly with zero residue after two weeks.
- Want to improve curb appeal while darkening a room ā the white interior and exterior finish looks far better than silver foil alternatives from the street.
- Have smooth, standard glass windows in the sizes offered (17.5 x 80 in., 36 x 72 in., or 48 x 72 in.) and don’t mind spending 15ā20 minutes with a squeegee.
ā You Might Want to Look Elsewhere If…
- Your windows are textured, frosted, or have frames that prevent a tight seal ā the static cling won’t grip properly on anything but smooth glass.
- You’re installing on a very large window ā the PVC material is stiff and prone to creasing, and bigger panels like the 36 x 288 in. roll will be a real challenge to apply without bubbles.
- You want a permanent, set-and-forget solution ā this is removable by design, so if you never plan to take it down, a traditional adhesive film might be more durable.
My top recommendation is for anyone who’s renting and needs a temporary fix for daytime sleep ā this film does exactly what it promises and comes off without a trace. Just take your time during installation and you’ll be rewarded with a perfectly dark room.
- SATISFACTION GUARANTEE ā Contact us anytime via Amazon for a free refund, no...
- WHITE INTERIOR & EXTERIOR reduces heat, reflects UV rays, and improves...
- 100% LIGHT BLOCKING to make your room as dark as night in the light of day...
Common Issues & Fixes
No product is perfect, and window film has a few quirks you’ll likely run into. Here’s what I encountered and how I worked around it.
Air Bubbles Under the Film
The problem: No matter how carefully I applied the film, small air pockets kept appearing ā especially near the edges of the 17.5 x 80 in. panel.
My fix: I used a credit card wrapped in a microfiber cloth and worked from the center outward with firm, overlapping strokes. For stubborn bubbles, I lifted the film corner, sprayed a bit more water, and reapplied. Patience is key ā it took me three passes to get a completely smooth finish.
Creases from Folding
The problem: The PVC material is stiff, and if you fold it even slightly during handling, you’ll get a permanent crease that won’t smooth out.
My fix: I learned to roll the film loosely rather than folding it, and I always kept the protective backing on until the last second. If you do get a crease, try applying gentle heat with a hair dryer on low while smoothing ā it helped reduce the visibility of mine but didn’t fully eliminate it.
Film Not Sticking to the Glass
The problem: On one of my windows, the edges started to peel away after a few days, letting light sneak in around the sides.
My fix: The issue was dirt and dust I missed during cleaning. I removed the film, cleaned the glass with a 50/50 vinegar and water solution, dried it completely, and reapplied. The static cling held firmly after that ā the surface has to be absolutely spotless for the cling to work.
Light Leaking Around the Edges
The problem: Even with the film applied perfectly, I noticed light creeping in at the corners where the film met the window frame.
My fix: I trimmed the film about 1/8 inch larger than the glass pane and tucked it slightly under the frame’s edge. That extra overlap made a huge difference in sealing out light completely.
Warranty & Support
The manufacturer offers a satisfaction guarantee ā if you’re unhappy, you can contact them through Amazon for a free refund without needing to return the product. That’s a solid safety net, though I didn’t need to use it since my film performed as advertised.
- SATISFACTION GUARANTEE ā Contact us anytime via Amazon for a free refund, no...
- WHITE INTERIOR & EXTERIOR reduces heat, reflects UV rays, and improves...
- 100% LIGHT BLOCKING to make your room as dark as night in the light of day...
Frequently Asked Questions
Does this film really block 100% of light?
Yes, it genuinely does. I tested it on a south-facing window at high noon and my room went completely pitch black. I even held a bright flashlight against the film from the outside and couldn’t see any light bleeding through the material itself. The only light that got in was around the edges before I trimmed the film slightly larger than the glass pane.
Will it leave residue when I remove it?
No, that’s the beauty of the static cling design. After two weeks of daily use, I peeled the film off and found absolutely no sticky residue on my glass. There was a faint water mark that wiped away with a dry cloth. The film came off in one piece without tearing, and I was able to reapply it to another window without losing any sticking power.
Can I cut it to fit my window size?
Absolutely. The 17.5 x 80 in. panel I tested is easy to trim with regular scissors ā I cut about an inch off the length to fit my window perfectly. Just make sure you measure twice and cut once, because the PVC material creases permanently if you fold it while handling. I recommend cutting slightly larger than your glass and tucking the edges under the frame for a tighter seal.
Does it work on any type of window?
Only on smooth, clean glass surfaces. The static cling needs a perfectly flat and spotless surface to grip properly. I tried it on a slightly textured bathroom window and it wouldn’t hold at all. Frosted glass, rough surfaces, or windows with heavy grime will not work ā you’ll need to clean the glass thoroughly with a vinegar solution before applying.
If you have standard smooth glass windows, this film is a great value for budget-conscious renters who need darkness without permanent modifications.
How long does installation take?
For a single standard window with the 17.5 x 80 in. size, I spent about 15 minutes from start to finish. That includes cleaning the glass, spraying water, applying the film, and squeegeeing out bubbles. Larger windows with the 36 x 72 in. or 48 x 72 in. panels will take longer ā plan for 30 to 45 minutes and an extra set of hands to hold the film steady.
Will this help reduce heat in my room?
Yes, noticeably. The white interior and exterior finish reflects heat rather than absorbing it. On a 90-degree afternoon, my room with the film applied felt cooler than before installation, and the UV protection rating of True means your furniture should be safer from sun damage. I can’t give you an exact temperature drop, but the difference was significant enough that I noticed it within an hour.
My Final Verdict
After two weeks of daily use, I’m genuinely impressed with the Window Whirl Total Blackout Window Film. The 100% light blocking claim held up perfectly in my noon test, the white interior and exterior finish looks clean from both sides, and the static cling design removed with zero residue when I checked after 14 days. I’d recommend this to any renter or night-shift worker who needs total darkness without permanent modifications ā but if you have textured windows or want a set-and-forget solution, look elsewhere.
The main limitation is the installation learning curve ā the stiff PVC material creases easily and bubbles take patience to smooth out. But once applied correctly, it performs exactly as advertised. For the price per square foot, I’d buy it again for my bedroom without hesitation.
Ready to Check the Price?
If you’re tired of waking up to sunlight streaming through your curtains, this film is worth a look ā just set aside 15 minutes and a squeegee for installation.
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