Could I use these to reduce sound coming from my room through my door? My walls are soundproof but my door isn’t

of course, they do reduce high noise and remove echo.I suggest you install them on your door,but you must Press them Firmly when you install them to the door,so the glue can be squeezed out from the foam,or they may fall off. Just Press Firmly! Do as my picture 6 above.

Can I put these on windows?

I mean they will adhere to glass but you will no longer be able to see out if the window. If blocking the window is your goal than yes it will work.

Can you put nails into them to hang them up?

I mean you could but that would be a lot of unnecessary holes. It comes with adhesion on the back. And if you didn't want to use that I personally used command strips.

Will these work to attach to ceilings to sound proof the sounds from upstairs? We have a basement apartment that you can hear everything.

From what I understand and what others have said, you need to install insulation between your ceiling and the floorboard above it. Without proper insulation, the empty space between the ceiling and floorboards forms an echo chamber, as you know.

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HEMRLY 12 pack Acoustic Panels Self-Adhesive, 1" X 12" X 12" Quick-Recovery Sound Proof Foam Panels, Acoustic Foam Wedges High Density, Soundproof Wall Panels for Home Studio,Carbon Black

Product ID: 426487244

Details

Brand
HEMRLY
Item thickness
1 Inches
Material
Polyester
Product dimensions
30.5L x 30.5W

⚡Ultra-fast 3-sec recovery

🖤Sleek carbon black 12"x12" panels

🧱High density 2.2 lb/ft³ foam

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Description

🎧 Elevate your sound space instantly—because silence is the new luxury.

SAFE VERSATILE - Non-toxic, flame-retardant materials perfect for studios, offices, home theaters, and more.
POWER PACKED DENSITY - High-density foam engineered to crush echoes and standing waves effectively.
INSTANT ACOUSTIC REVIVAL - Panels rebound in just 3 seconds—no waiting, no downtime.
EFFORTLESS TOOL FREE SETUP - Self-adhesive backing sticks to walls, doors, and ceilings in minutes—no tools required.
SLEEK SUBTLE SOUNDPROOFING - Carbon black wedges blend professional style with superior noise absorption.

HEMRLY Acoustic Panels deliver professional-grade sound absorption with ultra-high density foam that recovers within seconds of unpacking. Sized at 12"x12"x1", these carbon black wedges reduce echoes and standing waves in home studios, offices, and theaters. Designed for quick, tool-free installation with self-adhesive backing, they combine safety, style, and performance to transform any space into an acoustic haven.

Specifications

ASIN	B09JRW2RYB
Brand Name	HEMRLY
Coverage	12 square feet
Customer Reviews	3.9 3.9 out of 5 stars (431)
Item Dimensions L x W	30.5L x 30.5W centimeters
Item Thickness	1 Inches
Manufacturer	HEMRLY
Manufacturer Warranty Description	1
Material Type	Polyester
Number of Items	12
Recommended Uses For Product	Soundproofing and acoustic treatment for various spaces, including professional studios, home theaters, offices, and educational institutions
Unit Count	12 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R2217

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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