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Phi Series Phi 4
The Phi 4 is the largest-area unit in our Phi Series, a stationary tabletop device in a lightweight yet durable black ABS case. Multiple scalar output reaches up to 120m (about 394 feet) in every direction, making it our pick for homes and medium to large offices or workplaces facing close-range 5G and dense urban EMF. Runs 24/7 from a 12V supply and sets up in seconds, with US, AU, EU, and UK adapters included.
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120m (394ft) radius
For homes and medium to large offices or workplaces
All EMFs including large-area, close-range 5G
Black ABS plastic
3.94 x 3.94 x 4.53
Phi Series Phi 4
Features
Accessories Included:
Power supply included with US, AU, EU, and UK adapters
Approximate Battery Life:
N/A
Approximate Charge Time:
N/A
Case Materials:
Black ABS plastic
Coverage:
120m (394ft) radius
Power:
Direct Wall Plug-In (12V power supply)
Recommended Usage:
For homes and medium to large offices or workplaces
Safety Certificates:
All have FCC, CE, Ctick and RoHS certifications.
Size (inches):
3.94 x 3.94 x 4.53
Voltage Range:
100-240V
Weight (ounces):
10.58
The Blushield Phi 4 is a plug-and-play scalar field device offering large-area 5G and EMF protection for homes and medium to large offices or workplaces. In a durable yet lightweight black ABS case, this tabletop model covers up to 120m in all directions, making it the largest-area unit in our Phi Series.
With multiple scalar output, it helps protect the body from modern forms of electromagnetic radiation, including close-range 5G and dense urban EMF.
If you live or work in a large city, dense urban area, or anywhere close to cell towers and heavy 5G, we recommend the Phi 4 as your stationary home or office device, along with a portable for when you venture outside your protected area. The Phi 4 offers a stronger and larger area of protection than the Phi 1 Portable.
The Phi 4 produces multiple scalar output, where several frequency sets operate in tandem to keep the body adaptable and dynamic — ensuring a continual response to the field even after many years of use. It's designed to protect from more intense forms of EMF, like close-range 5G, and to help the body regenerate more quickly from any exposure still affecting it.
Setup takes seconds: plug it into any 12V wall supply and it runs 24/7. Power adapters for US, AU, EU, and UK are included.
Highlights
- Black ABS plastic design — lightweight yet strong
- Designed for homes and medium to large offices or workplaces
- Large-area 5G protection, 120m radius
- Multiple scalar output
- Plug-and-play installation — easy to set up
- 12V power supply for 24/7 performance
- Power supply included (US, AU, EU, UK adapters)
Specifications
- Coverage: 120m in all directions
- Size: 100mm × 100mm × 115mm
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Frequently asked questions
Invisible signals are part of modern life. Blushield works quietly in the background at home, at work and on the go, with no setup or maintenance.
It doesn't block or shield EMF. Instead, Blushield is designed to support the body's natural response to everyday electromagnetic exposure. By focusing on biological support rather than altering environmental signals, it takes a different approach to EMF protection.
Plug-in units (Premium, Ultimate, Phi) cover your home. Portables cover you when you leave it. Most people start with one of each: a plug-in for the house and a portable for travel, work, and the car. If you're not sure, use our Find Your Device tool or message us.
30-day limited money-back guarantee on every device (restocking fee applies - see our full return policy). Stationary and portable units carry a 1-year warranty. If anything extends past that, contact us.
Many customers still choose to use one. EMF meters measure field intensity at a single moment, and everyday sources such as Wi-Fi, Bluetooth, smart meters, cell towers and nearby homes are present around the clock. Blushield runs continuously, whatever a meter reads.
Experiences vary from person to person. Some customers tell us they notice a difference quickly, while others find it becomes a quiet part of their routine over a few weeks. Blushield is not a medical device and is not intended to diagnose, treat, cure or prevent any condition.
Yes. Blushield is built on decades of research into how the body responds to coherent vs. incoherent electromagnetic signals. We have independent studies, HRV data, and live-blood analyses on our Science page. We don't make medical claims. We point you to the data and let you decide.
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