Product Reviews

Let customers speak for us

190 reviews
Vitamin C powder

Very good product. Happy its not from china.

Like the product and excellent customer service!

The tooth powder tastes lovely and feels much more natural than fluoride based products. Hoping it will improve my tooth health through nourishing my gums over time. Jaina called me to check that I'd received the product and was happy with it, which was above and beyond the call of duty.

Terramin 2 in 1 Edible Minerals & Internal Detoxifier, 1lb (453g)
I'm glad I found this clay (Edinburgh, GB)

Thank you

Excellent product

Great Product!

This Vitamin C is really good, high-dose can pretty much reverse most illnesses. But you need to take lots of it! (as in 20,000mg or more)

Harmony XL – For Larger Living Spaces


In stock

Protection against electromagnetic radiation at home.

In stock

Categories: Tags: SKU: RUBPTM8H-1



  • Eliminates the negative effects of EMR (Electromagnetic Radiation) to your body and health
  • Reduce the cumulative effects of Stress, Headaches and Fatigue caused by Wifi, Bluetooth, Phones and Internet Streaming etc
  • Your children are at greater risk as they absorb 10 times more EMR
  • Enjoy the Health Benefits and Peace of Mind, knowing You are protected.
  • Harmony XL has been optimized in its design, manufacture and applications to meet customer demands whilst looking good.


Harmony XL protection against the effects of electromagnetic radiation at home, in the office, school or any other building space within range. More specifically, Harmony XL compensates for the potential effects of Wi-Fi, WiMAX, Bluetooth, DECT wired telephones, relay antennas, satellite communications, lower end 5G frequencies, electrical networks from low to very high voltage, geo-biological disturbances, microwave ovens, low consumption light bulbs, Smart meters and similar Smart technology, CPL (Carrying Currents Online) and transport (car, plane and train).

How does Harmony XL work?
All Comosystems Products use CMO (Compensating Magnetic Oscillator) technology which is stimulated by EM Radiation (from your house such as wifi, phones or smart meter.) and generates a compensating signal. This stops disruptions to our normal biological processes. (i.e. We are protected from the stress and danger caused by constant EMR exposure)

This means we Live in Harmony with Technology without interfering with the function and benefits we derive from wifi and phones.

Statement authorised by the AFSSAPS

“CMO is probably the best way today to compensate for the biological effects induced by artificial EMFs”

The French Health Products Safety Agency have authorised Comosystems in a public declaration to allow us to make this claim.

Attention: the Harmony XL multifunction protection covers all sources of electromagnetic pollution such as those described above. But they do not replace the need to equip communication devices used in frequent close contact with your body: for example, for your mobile phone and/or laptop/tablet.  We recommend that you fit them with an Easycall (for a mobile phone) or a PCZone for a laptop, desktops or tablet that is in frequent use and especially if it will be used outside an area protected by one of the Harmony CMOs. For those who are exposed to higher levels of EMFs outside the home/office too (eg those who fly frequently, or spend time in the car) we recommend the Traveller.


Harmony XL is a cone which is gold in colour.
Dimensions: Cone with 100 mm diameter, 73 mm height – 437 grams weight
Composition: CMOs are passive magnetic oscillators, operating without energy input: they activate in the presence of artificial electromagnetic fields.
The aluminum shell is made of 100% aluminum.
Chemical composition of the active solutions: microcrystalline saline solution treated electromagnetically.

Instructions For Use

Harmony XL is preferably located at the epicenter of your home, halfway up, for example on a high shelf of a ground floor or low on the first floor of a 2-storey house. The most important areas to ensure are covered are those areas where most time is spent and/or where there is a higher concentration of polluting equipment eg living room, bedrooms, home office etc.

Protective Coverage Area

The Harmony XL has been designed to provide effective spherical compensation zone for the potential effects of E.M.F within a diameter of 16m which is sufficient for a house of office space of 200m² (2126 square feet or less).

This means Protective coverage over three floors, so you can protect against Electromagnetic Radiation (inside and outside of your house) IE from a basement to a second floor lounge and Yours and Your Children’s rooms upstairs.

Note: the influence of the CMO on its environment is given as an approximate indication, but cannot in any case be a precise measure in every situation which will vary according to wall thickness, placement and building materials.  The figures provided are the limit of effectiveness of the corrective effect which has been calculated by the RAC method (auricular-cardiac reflex).


Customer Reviews

Based on 1 review

I choose to have no wi-fi, smart metre, microwave, dect phones etc in my house yet there was nothing I could do about neighbouring wifi and dect phone signals picked up by my Acoustimeter.

I then discovered this EMF protector. I decided to purchase the larger one which covers an 8 metre radius, so I could happily move around my home and be protected in all rooms.

When I first took this out of the box, I could feel the protector aligning with my energy field which I was surprised by but at the same time reassured.

Each unit comes with its own number and you can get a Certificate and Guarantee of Authenticity from the Como Systems website. After having this in my home for a week or so, the energy in my home feels calmer, smoother and I no longer feel concerned about neighbouring signals.

You might also like Verified Reviews Badge
Verified Reviews
Go to Top