Protecting generators and large electronics from EMP, CME, and RF interference is a growing concern for preppers, hobbyists, and professionals alike. The following selections represent five of the most relevant, field-tested options designed to shield portable generators and related gear. This guide compares capacity, build quality, and shielding performance to help you choose a practical Faraday solution for your needs and budget.
| Product | Brand | Size / Capacity | Key Shielding Feature |
|---|---|---|---|
| Faraday Fabric – 43″ x 118″ | ARCTIC EAGLE | 43″ x 118″ | 3-layer metallic structure; >70 dB attenuation; 0.09 mm thickness |
| Mission Darkness Dry Shield Rapture Faraday Bag | Mission Darkness | 1,060 L capacity | Three-layer TitanRF fabric; 70 dB attenuation; large generator space |
| Mission Darkness Dry Shield Revelation EMP Armor | Mission Darkness | 30″ L x 24″ W x 22″ H usable | MIL-STD-188-125 certified; expansive interior for generators |
| Xtreme Sight Line G CUBE 100 Faraday Bag | Xtreme Sight Line | 20″ x 20″ x 15″ (interior) | Late-model EMP/GMD protection; rugged exterior |
| Mission Darkness TitanRF DIY Faraday Cage Kit | Mission Darkness | Fits standard 27-gallon tote (liner inside) | All-inclusive DIY kit; MIL STD 188-125 / IEEE 299-2006 certified |
Note: This summary highlights five strong options for generator protection. Each product emphasizes shielding effectiveness, interior volume, and ease of setup, enabling you to compare durability, portability, and shielding depth at a glance.
Faraday Fabric – 43″ x 118″ Shielding Cloth
ARCTIC EAGLE’s Faraday Fabric combines a triple-layer metallic structure with added copper, producing high shielding performance across 10 MHz to 20 GHz. At 0.09 mm thickness, the fabric remains flexible for shaping around generators and accessories, while the 4% copper increase aims to improve durability and signal attenuation. The fabric is available in several sizes, including 43″ x 118″, to accommodate mid- to large-scale shielding zones. This option suits users seeking a fabric-based, customizable enclosure rather than a rigid bag or box.
Mission Darkness Dry Shield Rapture Faraday Bag
This large-capacity Faraday bag is designed to hold portable generators, solar panels, and oversized electronics. It uses three layers of TitanRF Faraday Fabric on interior surfaces to preserve device integrity during EMP or CME events, while blocking WiFi, Bluetooth, GPS, RFID, and other RF signals with about 70 dB attenuation. The rugged, waterproof design helps protect contents from environmental exposure, making it a practical pick for field readiness and rugged storage needs.
Mission Darkness Dry Shield Revelation EMP Armor
The Revelation EMP Armor is designed for larger electronics and power equipment, with interior dimensions that accommodate most compact generators and related gear. MIL-STD-188-125 certification signals compliance with stringent shielding and testing standards. This bag provides robust, military-grade protection against EMP, CME, and RF interference while maintaining portability and rugged duty cycle for field use and emergency response workflows.
Xtreme Sight Line G CUBE 100 Faraday Bag
This Faraday bag is optimized for medium-to-large generators and electronics, featuring an interior layout designed to reduce EMI and shielding-related interference. The G CUBE 100 form factor provides a compact, roll-top style interior that helps shield devices while keeping transport practical. The exterior construction emphasizes durability and usability for on-site prepper or pro-use scenarios.
Mission Darkness TitanRF DIY Faraday Cage Kit
For those who want a customizable build, the TitanRF DIY Kit provides TitanRF Faraday Fabric, tape, anchors, and other essentials to assemble a personal Faraday cage liner inside a standard container. It is MIL STD 188-125 and IEEE 299-2006 certified when paired with the recommended assembly practices. This option combines high shielding performance with DIY flexibility for bulky generators and related devices, making it a strong choice for advanced preparedness setups.
Buying Guide
- Shielding depth and frequency range: Look for attenuation ratings (e.g., 70 dB) and the stated frequency range. Higher dB values generally indicate stronger shielding across more RF bands, which matters for protecting sensitive generator electronics from a wide array of electromagnetic sources.
- Interior space and weight: Generators vary in size; choose a model with enough interior room and a practical weight profile for transport and storage. Large-capacity bags or cloth enclosures can simplify maneuvering bulky units.
- Durability and environmental resistance: If the solution will be stored outdoors or in harsh environments, prioritize water resistance, fire resistance, and rugged materials. This protects the investment over time and enhances reliability in emergencies.
- Certification and testing: MIL-STD-188-125 and IEEE 299-2006 compliance indicate a validated shield design. Certification helps ensure the product will meet expected performance in critical scenarios.
- DIY versus ready-made: DIY kits offer customization and potentially lower costs for large-scale shielding, but require more effort and proper assembly to achieve the desired performance. Ready-made bags or cloth enclosures provide quicker protection with less setup.
- Portability and handling: Consider whether you need a lightweight carry solution for transport to a shelter or field site, or a heavier, more permanent enclosure for a fixed setup.
- Segmented use cases: For generators, prioritize solutions that accommodate ventilation and heat dissipation requirements, while maintaining RF shielding. If you anticipate frequent access or inspection, choose designs with easy opening and resealing.