Seven products, one technology
Every SPIRO product contains the same nanocomposite material. What changes is the number of films, their distribution pattern, and the resulting filtering power. More films in a wider pattern produce a stronger coherent field, capable of handling higher levels of electromagnetic exposure.
A material, not a device
SPIRO is a patented nanomagnetic alloy of gold nanoparticles. It requires no power source, no battery, and no maintenance. Its magnetic properties are inherent to the material and do not degrade over time. Lab-verified durability exceeds 8 years. The only way SPIRO stops working is if the material is physically broken.
Scaled to the exposure
Each product handles a specific level of electromagnetic load. The number of films and their distribution pattern determine the filtering power. Radius figures are open-field measurements. In real environments, walls, obstacles, and the number of emission sources all reduce effective range.
SPIRO® CARD
SPIRO® CARD X
SPIRO® SQUARE
SPIRO® SQUARE X
SPIRO® DISC
SPIRO® DISC X
SPIRO® DISC ULTRA
Use products together for layered filtering
A Card on your phone handles near-field device emissions. A Disc near your router handles ambient exposure. The more sources you address, the greater the measurable biological benefit. The right combination depends on how many sources are present and how intense they are.
Full comparison
All seven SPIRO products side by side. Specs sourced from current product datasheets. Radius figures are open-field measurements in a fixed position.
| Product | Films | LF Range | HF Reach (Fixed)* | Power | SAR Capacity | Water | Designed For |
|---|---|---|---|---|---|---|---|
| SPIRO® CARD | 3 | 2 cm | 1.1 m / 3.6 ft | 1× | 2.2 W/kg | — | Single phone or wearable |
| SPIRO® CARD X | 9 | 20 cm | 2.7 m / 8.9 ft | 3× | 6.6 W/kg | 1 gal | Personal on-body protection |
| SPIRO® SQUARE | 7 | 10 cm | 2.4 m / 7.9 ft | 2.3× | 5.13 W/kg | — | Tablets, smart assistants |
| SPIRO® SQUARE X | 21 | 1 m | 7.56 m / 24.8 ft | 7× | 15.4 W/kg | 5.8 gal | Routers, workstations, EVs |
| SPIRO® DISC | 19 | 2 m | 7.2 m / 23.6 ft | 6.3× | 13.93 W/kg | 5 gal | General ambient exposure |
| SPIRO® DISC X | 57 | 2.5 m | 13.78 m / 45.2 ft | 19× | 41.8 W/kg | 15.8 gal | High-intensity, smart homes |
| SPIRO® DISC ULTRA | 95 | 3 m | 16 m / 52.5 ft | 31.6× | 69.67 W/kg | 26 gal | Severe exposure, EHS protocols |
| STROOM MASTER® | 9 | N/A | N/A | N/A | N/A | N/A | Dirty electricity, whole-home electrical hygiene |
LF Range (Low Frequency): how close the product must be to filter emissions from AC wiring and appliances. * HF Reach (High Frequency): open-field radius of the coherent field for wireless emissions (Wi-Fi, cellular, Bluetooth, 5G). Walls, obstacles, and multiple sources reduce this range in practice. SAR Capacity: the maximum source SAR level the product can filter at its rated power density. Water: volume structured in 8 minutes with the product placed vertically next to a container. All products have verified durability exceeding 8 years, a max operating temp of 60°C / 140°F, and a frequency response from 0 Hz to 300 GHz (Card) or 10 THz (Square X and above).
Stroom Master® for dirty electricity
Dirty electricity requires a different approach
Dirty electricity is a specific type of pollution: harmonics and transients that flow through your building's wiring. Switching power supplies, LED drivers, solar inverters, and other modern electronics push these disturbances into the grid. Because the problem lives inside the wiring, SPIRO films alone cannot address it.
The Stroom Master is an electronic low-pass filter that removes these harmonics from the electrical circuit. Plug it directly into a standard outlet — no setup, no tools, no electrician.
What sets it apart from other dirty electricity filters: The Stroom Master has 9 SPIRO films built into it. Other low-pass filters on the market generate their own low-frequency emissions as a byproduct of operation. The internal SPIRO material filters those emissions, so the device does not add new pollution while cleaning up existing pollution. UL-compliant design, no secondary emissions, and a 3-year warranty.
Use one per room, or at least four per 100 m² for full coverage. For high-EMF environments, multiple units in series improve filtering across the building's wiring.
Shop at SPIRO EMFWhat do you need to filter?
Start with the scenario that matches your situation. For a complete assessment, consult a certified BEMCP professional.
Your phone and personal devices
You carry your phone all day. It emits both high-frequency wireless signals and low-frequency electrical fields. A Card behind the case filters both within arm's reach. The Card X adds personal body-level filtering for all-day wear.
General home or office exposure
Routers, appliances, and wiring all contribute to the electromagnetic load. A Disc placed near the dominant emission source handles the typical ambient level of a living or working space.
Dense wireless environments or travel
Airports, hospitals, co-working spaces, or open-plan offices with concentrated wireless traffic. The Square X fits in a bag and has enough filtering power for these demanding environments. Also recommended for electric vehicles (3 units per EV).
Severe or industrial-level exposure
Proximity to 5G antennas, cell towers, electrical substations, high-voltage lines, or industrial machinery. The Disc X and Disc Ultra have the filtering power to handle extreme electromagnetic intensity. Multiple units may be needed.
Dirty electricity in your wiring
Harmonics and transients from LED drivers, solar inverters, and switching power supplies flow through building wiring. This is a different type of pollution that requires an active electronic filter plugged into the circuit.
Electromagnetic hypersensitivity (EHS)
EHS recovery requires a comprehensive protocol: multiple SPIRO products at different levels, Stroom Master for the wiring, and environmental adjustments. Independent HRV studies show measurable improvements in autonomic balance and stress biomarkers.
Ready to get started?
All SPIRO products are available at the SPIRO EMF store. For guidance on what to buy, explore the applications or consult with a certified professional.