Do these make a difference if you are in a big apartment building and you just plug them into walls in your apartment?

Hello, Our filters will certainly help but your neighbors also have dirty electricity on their wireline and some of it will end up in your environment. Your immediate environment will be much improved with the filters. The filters simply plug in the wall. They are UL and RoHS certified. Best, Gene 415 261-7387

Is it ok to plug this into a ups battery backup? one with both surge protected and battery protected outlets.

The manufacturer brochure that came with mine said not to plug the filter into the same outlet as anything that has its own power supply, or that charges devices or batteries

Are these 2-prong or 3-prong?

We carry both 3 prong and 2 prong filters. Thanks! Gene

I have a Trifield TF2 meter, will this work to measure the before and after?

The Trifield TF2 does not measure dirty electricity. It measures magnetic fields, electric fields and RF (wireless) 3 out of the 4 recognized forms of EMF Hope this helps. Gene

Greenwave Dirty Electricity Filter Kit Up To 500 Sq Ft

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$350.05

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Clean power, clear mind—filter your space, elevate your life.

COMPREHENSIVE STARTER KIT - Four filters plus a free receptacle tester to optimize your home’s electrical health.
CERTIFIED SAFETY DURABILITY - UL certified and RoHS compliant for long-lasting, worry-free use.
MEASURABLE IMPACT WITH EMI METER - Pair with a Greenwave meter to track and maximize your dirty electricity reduction.
SMART PASS THROUGH OUTLET DESIGN - Keep your outlets fully functional with built-in pass-through convenience.
INSTANT DIRTY ELECTRICITY REDUCTION - Plug in and experience immediate cleaner power—no rewiring needed.

The Greenwave Dirty Electricity Filter Kit uses advanced EMI filtering technology to reduce high-frequency electrical pollution in your home or office. Designed for easy plug-and-play installation, this 4-pack covers up to 500 sq ft (2-3 rooms) and includes a free receptacle tester. UL certified and RoHS compliant, these durable filters maintain outlet usability with pass-through sockets and deliver measurable improvements when paired with a compatible EMI meter.

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$350.05

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Greenwave Dirty Electricity Filter Kit – Up to 500 Sq Ft (2–3 Rooms) (4 Pack)

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