does this get installed before the fane for after the Fan and how far?

I've installed one before and one after - directly on the fan. I ultimately returned the one before the fan because the improvement was relatively minor.

Can you connect these mufflers in series? And what impact does that have? e.g. one reduces 50% two reduces 75% ... and so forth?

I don’t think they can be used end to end but you can put one on either side of the fan and that should reduce the sound.... or if you’d like you can put one directly against the fan and then add another one at the end of a duct as well. I can’t give you any specific numbers though.

Can I simple insert this silencer (not fan) before my output in my home music studio?

The openings on each side is 4" in diameter. I'm not sure exactly what your affixing this to but if it's similar to any duct opening you'll need a clamp or coupler. Hope this helps!

Will this work on a radon fan system?

i dont know about a radon but ive used a hyperfan and it fits perfect. ive also used one of those cheap vivosun ones with the red fan blades and it is about a quarter inch smaller than the flange on th muffler. it does work well though.

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AC Infinity Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower

AC Infinity Inline Duct Fan Silencer, 100mm Noise Reduction Muffler Blower

Product ID: 457705435

Details

Brand
AC Infinity
Configuration
Dual/Dual
Item weight
1.04 kg
Material
Aluminium
Shape
Round

📏100mm (4-inch) duct size

🔇50% noise reduction

🛡️corrosion-resistant steel

€ 108.82

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Description

🔇 Silence your space, amplify your focus.

PRECISION FIT - 100mm (4-inch) channel diameter ensures seamless integration with standard duct fans.
BUILT TO ENDURE - Galvanized steel body resists corrosion and handles extreme temperatures effortlessly.
LIGHTWEIGHT COMPACT - At just 1.0 kg and 38.1 cm length, it fits discreetly in any grow tent or HVAC setup.
WHISPER QUIET PERFORMANCE - Cut fan noise by up to 50% with premium neoprene egg crate foam.
VIBRATION ABSORBING DESIGN - Dual aluminum flanges absorb sound waves from fan vibration and airflow.

The AC Infinity Inline Duct Fan Silencer is a high-performance noise reduction muffler designed for 100mm (4-inch) duct fans. Featuring a corrosion-resistant galvanized steel body and neoprene egg crate foam, it reduces fan noise by up to 50%, while dual aluminum flanges absorb vibration sounds. Lightweight and compact, it’s ideal for hydroponic grow tents, bath fans, and HVAC systems seeking quieter, more efficient airflow.

Specifications

ASIN	B0829GJ5Q7
Best Sellers Rank	83,731 in Garden ( See Top 100 in Garden ) 47 in Hydroponic Ventilation Equipment
Brand Name	AC Infinity
Configuration	Dual/Dual
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (192)
Global Trade Identification Number	00819137021051
Item Highlight	Silencer for Indoor Hydroponics Grow Tent Ventilation Systems, 4-Inch
Item Shape	Round
Item Weight	1.04 kg
Manufacturer	AC INFINITY
Manufacturer Part Number	AC-DSA4
Material Type	Aluminium alloy steel
Model Number	AC-DSA4
Number of Items	1
UPC	819137021051
Unit Count	1.0 count

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€ 108.82

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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