Are the prefilters actually washable?

No they are not washable because they have charcoal in them as they are charcoal filters to knock down the smell.

Weight of the activated carbon contents in the product?

If it's not labeled in the ad then it's impossible to tell without damaging the filter since it's tac welded closed.

Can i wash it? theres replacements so i can keep using the one i bought first?

I'm sure you can wash the pre filter. As far as the canister I'm not sure I don't think so. You can find a better filter that will last longer. Imo this one is not worth the money!

would this work to vent a small resin printer?

If your small resin printer has a 4" exhaust that needs fumes or smells scrubbed by charcoal then probably yes. These were designed for growing plants with pungent odors.

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4inch Carbon Filter Odor Control with Australia Virgin Charcoal Two Prefilter 1 Pair Rope Hanger Included for Inline Duct Fan, Grow Tent, Hydroponics, Odor Scrubber

4inch Carbon Filter Odor Control with Australia Virgin Charcoal Two Prefilter 1 Pair Rope Hanger Included for Inline Duct Fan, Grow Tent, Hydroponics, Odor Scrubber

Product ID: 190279957

Details

Brand
vanleno
Color
Silver
Item Weight
5.4 Pounds
Power Source
ac
Product Dimensions
12"D x 6.7"W x

🖤1200+ IAV Australian virgin activated carbon

🌬️210 CFM airflow

🛡️99% particle-blocking dual pre-filters

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€ 91.79

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖤 Elevate your air game — because fresh is the new power move.

READY TO HANG READY TO GO - Comes with heavy-duty stainless steel rope hangers for quick, secure setup in grow tents, hydroponics, or indoor spaces.
MAXIMUM FRESHNESS MINIMUM FUSS - Eliminates 99.9% of odors with premium Australian virgin activated carbon for a cleaner, fresher environment.
DUAL DEFENSE PRE FILTERS INCLUDED - Two washable pre-filters block 99% of particles, extending the life of your carbon filter and maintaining peak performance.
BREATHE EASY WITH SUPERIOR AIRFLOW - 210 CFM airflow powered by a 53% open mesh design ensures optimal ventilation without compromising filter life.
BUILT TO LAST DESIGNED TO PERFORM - Lightweight 1.6mm aluminum casing reduces weight by half compared to competitors, making installation effortless.

This 4-inch carbon filter features 1200+ IAV Australian virgin activated carbon for superior odor control, delivering 210 CFM airflow through a high-ventilation mesh design. Equipped with two washable pre-filters blocking 99% of particles and lightweight aluminum housing, it’s engineered for efficient, long-lasting performance in grow tents, hydroponics, and indoor environments. Includes stainless steel rope hangers for easy installation.

Specifications

ASIN	B085DMC2LX
Best Sellers Rank	#84,000 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #35 in Hydroponic Ventilation Equipment
Brand Name	vanleno
Color	Silver
Contaminant Filtration Capability	High
Control Method	App
Controller Type	Button Control
Customer Reviews	4.6 4.6 out of 5 stars (2,937)
Filter Class	Activated Carbon
Filter Type	Activated Carbon
Item Dimensions D x W x H	12"D x 6.7"W x 12"H
Item Weight	5.4 Pounds
Manufacturer	Vanleno
Model Number	750466136880
Power Source	ac
Special Features	washable_filter, portable
UPC	750466136880

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