Briidea Dirty Electricity Filters, Reduce High-Frequency Noise Caused by Electronic Devices for a Stable and Clean Power Supply for You, Extend the Lifespan of Your Electric Device, White

My home electrical panel has AFCI breakers, which are very sensitive to tripping due to electrical “noise” coming from a portable AC unit I use in the summer. I had the circuit checked out by an electrician to ensure there were no actual arc faults causing the tripping. The circuit was fine - so it was clearly just “noise” from the AC. After plugging the AC into this, I haven’t had the circuit trip in the past few weeks! There is no installation - just plugged the AC into it and then this into the outlet. I recommend this - provided you ensure that your AFCI is not tripping due to an actual arc fault.

I opened it up to check what it had inside (no longer eligible for return). I bought it to keep the RF from my ham transmitter from interfering with my cable box. Anyway, what inside is a large (~24 uF) capacitor, two ceramic disc capacitors (~330 nF each), and an ineffective 330 kOhm bleeder resistor. You get ~330 nF from each side of the line to the ground pin. The bleeder is connected from L to N conductors, so when the device is unplugged, it doesn't bleed the stored charge on the capacitors. This point was mentioned in several reviews - no you know how and why it happens. There is no inductive or magnetic component in the alleged filter. The 24 uF is connected from L to N and will draw approximately 1 Amp at 120V 60 Hz. It will take the bleeder resistor about 24 seconds to discharge the capacitor, so if you touch the prongs immediately after unplugging it, you could get a substantial shock (see other reviews). I was suspicious when the mentioned "dirty electricity" in their advertising. I've been an electrical engineer for 60 years and have never encountered any dirt in electricity. I assumed they mean electricity with noise riding on it, which is quite common. In any case, the ability of the device to remove noise is likely to be limited to differential mode noise. It my remove some higher frequency noise, such as that caused by motors and contactors. One of its weaknesses is that it can only bypass the L and N to the "ground" pin; in real world noise situations the noise is often on the "ground" conductor as well as on the L and N. The case and male and female line connectors look quite good, so I used them and added my own filter in the volume where their capacitor sits. I was also be able to reuse their circuit board. My filter, a tri-filar wound toroid core, did the job for me.

Have them on several plugs. Was hoping it would clean the wave coming from my generator during a power outage. Had two of them make the Amazon Basic battery backup think they were flickering in and out of power.

I would not have guessed that a new SONY Bravia would create an electromagnetic 'storm' for a Heath Kit clock, which would jump five, ten, twenty minutes fast and / or slow within a few hours. Thank goodness for the internet. Within a few quick searches the answer was revealed : EMI could be (and was) the cause. After plugging the Bridea filter between the outlet and the existing devices (SONY, speakers, clock, etc), the clock settled down without a shutter and kept perfect time thereafter. The filter is functional, easy to install, noiseless and has excellent value. Peace of mind, too, if human exposure to EMI is an issue.

I'm still testing and checking see if made any difference on elect. Bill

NOT A SAFE PRODUCT!!! This electricity filter is not built well for filtering electrical noise as it is advertised. Not worth the money, don't be fooled by the size. Holds a lot of power if you unplug it do not touch the terminals or it might shock you. This product is built to be used like a UPS, but instead of using a battery, it's a capacitor. It filters some high frequency noise, and for my speakers it worked for a minute and then stopped working shortly after. I bought the product because I wanted it immediately and this one would ship the fastest. Probably because it's not worth the money. I didn't read the reviews until afterward, and I saw the one that said it shocked them after unplugged. That made me very concerned, so I tested it and it seemed to work until I walked away and came back. Once I came back the same noise I was trying to eliminate was back and so I unplugged it and took a screwdriver and held it in the neutral terminal then touched the positive terminal and a huge spark came off the device. This is not a safe product to have around the house, and doesn't even work as advertised.

Unfortunately it did not solve the problem! I have a washing machine that causes lights to flicker in two rooms next to the utility room. I have already had an electrician to work on the issue but so far no success! I have replaced light fixtures, receptacle, tightened screws, and inspect the breaker box to our home! Yes, I replaced light bulbs also. I even replaced the washer!!!!

My application for this device was somewhat unusual. I wanted to use it on a laser printer to prevent noise from the printer getting back onto the AFCI breaker and causing a nuisance trip. It worked perfectly in doing that, so for me this is a big win. I think it very likely that it would solve similar nuisance tripping problems from other tools and appliances. For those interested, the breaker was a Square-D QO combination GFCI/AFCI with purple button. I had some concern about the power handling capability as I didn't find that important information in the product info. However, the actual device has a sticker saying the max load was 15A, which would be adequate for almost anything. My large printer draws at least 10A when printing and at startup. I did not notice this filter warming up at all. Some things to consider are the size and the claims. The device is fairly bulky so beware of that if something has to be pushed up against the wall where it is plugged in. The other thing are the claims about keeping a healthy environment, or generally being needed to improve the function of some devices such as musical instruments. All I can say about the health benefits of using this devices is that I am skeptical, and could imagine certain types of magnetic radiation being higher in the near field of this device that without. It would not concern me either way. As far as needing it to preserve the best lifetime or performance of a specific load, that is possible but only in rare cases. The great majority of people living on city power have good enough electricity and good enough appliances to where there would be no benefit. If not, then this gadget might be a fix, but only if the problem is high frequency noise. For these reasons, and the fairly high cost, I demote it by one star.

Just received two of the items today. I already have 4 x Stetzeier dirty electricity devices plus StetzeMicrosurge Meter. I compared each brand in regards to amount of reduction shown in Stetzeier Microsurge Meter. These new devices reduces equal or slightly better reduction than Stetzeier devices. I am very pleased and will keep them!